diff --git a/doc/dts_gsg/quick_start.rst b/doc/dts_gsg/quick_start.rst
index 78352a73..a2dbfa68 100644
--- a/doc/dts_gsg/quick_start.rst
+++ b/doc/dts_gsg/quick_start.rst
@@ -155,7 +155,7 @@ DPDK source code should be packed as "dpdk.tar.gz" and moved into dts/dep:
 Configuring DTS
 ---------------
 
-A few of files should be configured, including execution.cfg, conf/crbs, conf/ports.cfg.
+A few of files should be configured, including execution.cfg, $DTS_CFG_FOLDER/crbs, $DTS_CFG_FOLDER/ports.cfg.
 
 execution.cfg
 ~~~~~~~~~~~~~
@@ -175,7 +175,7 @@ execution.cfg
 * crbs: IP address of the DUT system
 * test_suites: a list of test suites to be executed
 
-conf/crbs.cfg
+$DTS_CFG_FOLDER/crbs.cfg
 ~~~~~~~~~~~~~
 
 .. code-block:: console
@@ -196,7 +196,7 @@ conf/crbs.cfg
 * tester_ip: IP address of tester
 * tester_passwd: Password of Tester linux account, user name should same as dut_user
 
-conf/ports.cfg
+$DTS_CFG_FOLDER/ports.cfg
 ~~~~~~~~~~~~~~
 
 .. code-block:: console
@@ -206,7 +206,7 @@ conf/ports.cfg
        pci=0000:06:00.0,peer=0000:81:00.0;
        pci=0000:06:00.1,peer=0000:81:00.1;
 
-* [192.168.1.1]: same as crbs in execution.cfg and dut_ip in conf/crbs.cfg
+* [192.168.1.1]: same as crbs in execution.cfg and dut_ip in $DTS_CFG_FOLDER/crbs.cfg
 * pci: pci address of DUT port
 * peer: pci address of Tester port which connected to the DUT port whose pci is `pci`.
 
diff --git a/doc/dts_gsg/usr_guide/ixia.rst b/doc/dts_gsg/usr_guide/ixia.rst
index 2ad754ef..bd665652 100644
--- a/doc/dts_gsg/usr_guide/ixia.rst
+++ b/doc/dts_gsg/usr_guide/ixia.rst
@@ -25,7 +25,7 @@ First of all, you must configure execution.cfg as below:
 Configure CRB information
 ~~~~~~~~~~~~~~~~~~~~~~~~~
 
-Then please add the detail information about your CRB in conf/crbs.conf as following:
+Then please add the detail information about your CRB in $DTS_CFG_FOLDER/crbs.conf as following:
 
 .. code-block:: console
 
@@ -52,7 +52,7 @@ ports topology as below:
    IXIA port 0 <---------> DUT port 0
    IXIA port 1 <---------> DUT port 1
 
-please add port configuration in conf/ports.cfg as following:
+please add port configuration in $DTS_CFG_FOLDER/ports.cfg as following:
 
 .. code-block:: console
 
@@ -64,7 +64,7 @@ please add port configuration in conf/ports.cfg as following:
 Configure pktgen information
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-please configure Pktgen information in conf/pktgen.cfg
+please configure Pktgen information in $DTS_CFG_FOLDER/pktgen.cfg
 
 .. code-block:: console
 
@@ -86,7 +86,7 @@ Configure your own suites
 
 Performance tests generally have configuration files.
 it's name corresponds to the suite.
-Below is the conf/nic_single_core_perf.cfg configuration file.
+Below is the $DTS_CFG_FOLDER/nic_single_core_perf.cfg configuration file.
 You can set the test parameters according to your test needs.
 
 
diff --git a/doc/dts_gsg/usr_guide/trex.rst b/doc/dts_gsg/usr_guide/trex.rst
index e8b1fe94..00e15baa 100644
--- a/doc/dts_gsg/usr_guide/trex.rst
+++ b/doc/dts_gsg/usr_guide/trex.rst
@@ -167,11 +167,11 @@ Add the performance test suite and set perf=true::
     parameters=nic_type=cfg:perf=true
     root@tester:dts#
 
-Configure conf/crbs.cfg
+Configure $DTS_CFG_FOLDER/crbs.cfg
 ~~~~~~~~~~~~~~~~~~~~~~~
 Set the pktgen_group=trex or pktgen_group=TREX, this item is case insensitive::
 
-    root@tester:dts# cat conf/crbs.cfg
+    root@tester:dts# cat $DTS_CFG_FOLDER/crbs.cfg
     [192.168.1.1]
     dut_ip=192.168.1.1
     dut_user=root
@@ -185,12 +185,12 @@ Set the pktgen_group=trex or pktgen_group=TREX, this item is case insensitive::
     channels=4
     bypass_core0=True
 
-Configure conf/ports.cfg
+Configure $DTS_CFG_FOLDER/ports.cfg
 ~~~~~~~~~~~~~~~~~~~~~~~~~
 This configuration is just same with PF function test, so if you have completed some functional test,
-you have no need to modify the conf/ports.cfg, just like below::
+you have no need to modify the $DTS_CFG_FOLDER/ports.cfg, just like below::
 
-    root@tester:dts# cat conf/ports.cfg
+    root@tester:dts# cat $DTS_CFG_FOLDER/ports.cfg
     [192.168.1.1]
     ports =
         pci=0000:05:00.0,peer=0000:0b:00.0;
@@ -198,7 +198,7 @@ you have no need to modify the conf/ports.cfg, just like below::
 
 In addition, it could be configured as below::
 
-    root@tester:dts# cat conf/ports.cfg
+    root@tester:dts# cat $DTS_CFG_FOLDER/ports.cfg
     [192.168.1.1]
     ports =
         pci=0000:05:00.0,peer=TREX:0;
@@ -206,13 +206,13 @@ In addition, it could be configured as below::
 
 We recommend to use the first format configuration, as it has no need to do modification when we do functional test.
 
-Configure conf/pktgen.cfg
+Configure $DTS_CFG_FOLDER/pktgen.cfg
 ~~~~~~~~~~~~~~~~~~~~~~~~~~
-Fill in the conf/pktgen.cfg with your TREX setting, for the first time, you should set start_trex=yes.
+Fill in the $DTS_CFG_FOLDER/pktgen.cfg with your TREX setting, for the first time, you should set start_trex=yes.
 Set the IP address of the device which you installed TREX into item ‘server=’, it should be the tester IP.
 The configuration should as below::
 
-    root@tester:dts# cat conf/pktgen.cfg
+    root@tester:dts# cat $DTS_CFG_FOLDER/pktgen.cfg
     [TREX]
     trex_root_path=/opt/trex/v2.88
     trex_lib_path=/opt/trex/v2.88/automation/trex_control_plane/interactive
diff --git a/doc/dts_gsg/usr_guide/usage.rst b/doc/dts_gsg/usr_guide/usage.rst
index ef729a9e..391662f6 100644
--- a/doc/dts_gsg/usr_guide/usage.rst
+++ b/doc/dts_gsg/usr_guide/usage.rst
@@ -22,7 +22,7 @@ First of all, you must configure execution.cfg as below:
        x86_64-native-linuxapp-gcc
    parameters=nic_type=cfg:func=true
 
-* crbs: IP address of the DUT. The detail information is defined in file conf/crbs.cfg.
+* crbs: IP address of the DUT. The detail information is defined in file $DTS_CFG_FOLDER/crbs.cfg.
 * drivername: the driver devices used by DPDK bound to.
 * build_type: the tool for building DPDK, it can be meson and makefile. DPDK 20.11+ only uses meson and ninja.
 * rx_mode: vector instructions used in tests, it can be novector/sse/avx2/avx512. it is optional, if not set, dpdk uses avx2 by default.
@@ -31,7 +31,7 @@ First of all, you must configure execution.cfg as below:
 * parameters: multiple keywords as following:
 
   * nic_type: it is the type of the NIC to use. The types are defined in the file settings.py.
-    There's a special type named as **cfg**, which mean network information will be loaded from file conf/ports.cfg.
+    There's a special type named as **cfg**, which mean network information will be loaded from file $DTS_CFG_FOLDER/ports.cfg.
     If use NIC type such as niantic, fortville_25g, it requires all DUT are the same types and no any same devices connected to Tester,
     as DTS will test all devices connected to Tester. Therefore, recommend using **cfg**.
   * func=true: run only functional test.
@@ -59,7 +59,7 @@ Here are an example for functional testing:
 Configure CRB information
 ~~~~~~~~~~~~~~~~~~~~~~~~~
 
-Then please add the detail information about your CRB in conf/crbs.conf as following:
+Then please add the detail information about your CRB in $DTS_CFG_FOLDER/crbs.conf as following:
 
 .. code-block:: console
 
@@ -105,7 +105,7 @@ Here are an example for functional testing:
 Configure port information
 ~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-If set ``nic_type=cfg`` in execution.cfg, please add port configuration in conf/ports.cfg as following:
+If set ``nic_type=cfg`` in execution.cfg, please add port configuration in $DTS_CFG_FOLDER/ports.cfg as following:
 
 .. code-block:: console
 
@@ -122,7 +122,7 @@ It supports three patterns, the first one is for functional testing, the second
 
   * if it is func testing, it is pci address
   * if pktgen is ``TRex``, the `X` in ``TREX:X`` is port id in TRex configuration file, e.g. /etc/trex_cfg.yaml.
-  * if pktgen is ``IXIA``, the `X` is card id ,and the `Y` is port id, which configured in ./conf/pktgen.cfg.
+  * if pktgen is ``IXIA``, the `X` is card id ,and the `Y` is port id, which configured in DTS_CFG_FOLDER/pktgen.cfg (./conf/pktgen.cfg by default).
 
 Here are an example for functional testing:
 
@@ -155,7 +155,7 @@ Here are an example for TRex:
 Configure all test suites
 ~~~~~~~~~~~~~~~~~~~~~~~~~
 
-conf/global_suite.cfg is a global suite configure file which is shared by all suites.
+$DTS_CFG_FOLDER/global_suite.cfg is a global suite configure file which is shared by all suites.
 
 .. code-block:: console
 
@@ -168,8 +168,8 @@ conf/global_suite.cfg is a global suite configure file which is shared by all su
 Configure your own suites
 ~~~~~~~~~~~~~~~~~~~~~~~~~
 
-Not all test suites have it's own configuration file which depended on script. If it has, the configuration file is conf/[suite_name].cfg
-For example, suite metrics has its suite configure file conf/metric.cfg:
+Not all test suites have it's own configuration file which depended on script. If it has, the configuration file is $DTS_CFG_FOLDER/[suite_name].cfg
+For example, suite metrics has its suite configure file $DTS_CFG_FOLDER/metric.cfg:
 
 .. code-block:: console
 
@@ -183,12 +183,12 @@ For example, suite metrics has its suite configure file conf/metric.cfg:
 Configure your pktgen
 ~~~~~~~~~~~~~~~~~~~~~
 
-Pktgen information are configured in conf/pktgen.cfg, pktgen_group must be configured too:
+Pktgen information are configured in $DTS_CFG_FOLDER/pktgen.cfg, pktgen_group must be configured too:
 
 * traffic generator is ``TRex``, set ``pktgen_group=trex`` in crbs.cfg.
 * traffic generator is ``IXIA``, set ``pktgen_group=ixia`` in crbs.cfg.
 
-Then configure conf/pktgen.cfg as following:
+Then configure $DTS_CFG_FOLDER/pktgen.cfg as following:
 
 .. code-block:: console
 
diff --git a/framework/checkCase.py b/framework/checkCase.py
index 3182dc77..82c86c46 100644
--- a/framework/checkCase.py
+++ b/framework/checkCase.py
@@ -1,19 +1,17 @@
 import collections
 import json
+import os
 
-import xlrd
-
-from .settings import HOST_DRIVER_SETTING, get_nic_name, load_global_setting
+from .settings import HOST_DRIVER_SETTING, get_nic_name, load_global_setting, CONFIG_ROOT_PATH
 from .utils import RED
 
-filter_json_file = './conf/test_case_checklist.json'
-support_json_file = './conf/test_case_supportlist.json'
-
+filter_json_file = os.path.join(CONFIG_ROOT_PATH, 'test_case_checklist.json')
+support_json_file = os.path.join(CONFIG_ROOT_PATH, 'test_case_supportlist.json')
 
 class CheckCase(object):
     """
     Class for check test case running criteria. All information will be loaded
-    from conf/test_case_*list.json. Current two files are maintained. One is
+    from DTS_CFG_FOLDER/test_case_*list.json. Current two files are maintained. One is
     for check whether test case should skip, another one is for check whether
     current environment support test case execution.
     """
diff --git a/framework/project_dpdk.py b/framework/project_dpdk.py
index 9927bcc1..05462b6d 100644
--- a/framework/project_dpdk.py
+++ b/framework/project_dpdk.py
@@ -46,7 +46,7 @@ from .settings import (
     NICS,
     accepted_nic,
     load_global_setting,
-    save_global_setting,
+    save_global_setting, CONFIG_ROOT_PATH,
 )
 from .ssh_connection import SSHConnection
 from .tester import Tester
@@ -571,7 +571,7 @@ class DPDKdut(Dut):
         folder_info = folder.split('/')
         name = folder_info[-1]
         if name != 'examples' and name not in self.apps_name:
-            raise Exception('Please config %s file path on conf/app_name.cfg' % name)
+            raise Exception(f'Please config {name} file path on {os.path.join(CONFIG_ROOT_PATH, "app_name.cfg")}')
 
         if name == 'examples':
             example = 'all'
diff --git a/framework/virt_base.py b/framework/virt_base.py
index 148a4d18..e6b9f038 100644
--- a/framework/virt_base.py
+++ b/framework/virt_base.py
@@ -120,7 +120,7 @@ class VirtBase(object):
 
     def load_global_config(self):
         """
-        Load global configure in the path DTS_ROOT_PATH/conf.
+        Load global configure in the path CONFIG_ROOT_PATH.
         """
         conf = VirtConf(VIRTCONF)
         conf.load_virt_config(self.virt_type)
@@ -138,7 +138,7 @@ class VirtBase(object):
 
     def load_local_config(self, suite_name):
         """
-        Load local configure in the path DTS_ROOT_PATH/conf.
+        Load local configure in the path CONFIG_ROOT_PATH ('DTS_ROOT_PATH/$DTS_CFG_FOLDER/' by default).
         """
         # load local configuration by suite and vm name
         try:
diff --git a/framework/virt_scene.py b/framework/virt_scene.py
index cc36a09b..1acb7a0c 100644
--- a/framework/virt_scene.py
+++ b/framework/virt_scene.py
@@ -41,7 +41,7 @@ from .utils import create_mask
 
 # scenario module for handling scenario
 # 1. load configurations
-# config saved in conf/scenarios/name.cfg
+# config saved in $DTS_CFG_FOLDER/scenarios/name.cfg
 # load configurations will saved in vm list
 # 2. handle special config
 #   pf_idx=0,vf_num=2,driver=default;
diff --git a/tests/TestSuite_iavf_package_driver_error_handle.py b/tests/TestSuite_iavf_package_driver_error_handle.py
index 0cdba385..c4277fc7 100644
--- a/tests/TestSuite_iavf_package_driver_error_handle.py
+++ b/tests/TestSuite_iavf_package_driver_error_handle.py
@@ -35,6 +35,7 @@ import time
 
 from framework.config import UserConf
 from framework.pmd_output import PmdOutput
+from framework.settings import CONFIG_ROOT_PATH
 from framework.test_case import TestCase
 
 
@@ -47,7 +48,7 @@ class Testiavf_package_and_driver_check(TestCase):
         self.verify(len(self.dut_ports) >= 1, "Insufficient ports")
         self.PF_QUEUE = 16
 
-        conf_file = 'conf/iavf_driver_package.cfg'
+        conf_file = os.path.join(CONFIG_ROOT_PATH, 'iavf_driver_package.cfg')
         conf_peer = UserConf(conf_file)
         conf_session = conf_peer.conf._sections['suite']
         self.driverPath_latest = conf_session['ice_driver_file_location_latest']
diff --git a/tests/TestSuite_ipsec_gw_cryptodev_func.py b/tests/TestSuite_ipsec_gw_cryptodev_func.py
index a5d6e775..57ca79d9 100644
--- a/tests/TestSuite_ipsec_gw_cryptodev_func.py
+++ b/tests/TestSuite_ipsec_gw_cryptodev_func.py
@@ -30,11 +30,13 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 import binascii
+import os.path
 import time
 
 import framework.packet as packet
 import framework.utils as utils
 import tests.cryptodev_common as cc
+from framework.settings import CONFIG_ROOT_PATH
 from framework.test_case import TestCase
 
 
@@ -87,7 +89,7 @@ class TestIPsecGW(TestCase):
             "u": "0x1"
         }
 
-        conf_file = r'conf/ipsec_ep0.cfg'
+        conf_file = os.path.join(CONFIG_ROOT_PATH, 'ipsec_ep0.cfg')
         self.dut.session.copy_file_to(conf_file, '/tmp')
 
     def set_up(self):
diff --git a/tests/TestSuite_nic_single_core_perf.py b/tests/TestSuite_nic_single_core_perf.py
index 1012dbf3..e1020895 100644
--- a/tests/TestSuite_nic_single_core_perf.py
+++ b/tests/TestSuite_nic_single_core_perf.py
@@ -206,7 +206,7 @@ class TestNicSingleCorePerf(TestCase):
 
     def handle_expected(self):
         """
-        Update expected numbers to configurate file: conf/$suite_name.cfg
+        Update expected numbers to configurate file: $DTS_CFG_FOLDER/$suite_name.cfg
         """
         if load_global_setting(UPDATE_EXPECTED) == "yes":
             for fwd_config in list(self.test_parameters.keys()):
diff --git a/tests/TestSuite_perf_virtio_user_loopback.py b/tests/TestSuite_perf_virtio_user_loopback.py
index 6ab6fa48..d15dbb53 100644
--- a/tests/TestSuite_perf_virtio_user_loopback.py
+++ b/tests/TestSuite_perf_virtio_user_loopback.py
@@ -186,7 +186,7 @@ class TestPerfVirtioUserLoopback(TestCase):
 
     def handle_expected(self):
         """
-        Update expected numbers to configurate file: conf/$suite_name.cfg
+        Update expected numbers to configurate file: $DTS_CFG_FOLDER/$suite_name.cfg
         """
         if load_global_setting(UPDATE_EXPECTED) == "yes":
             for frame_size in self.test_parameters.keys():
diff --git a/tests/TestSuite_pvp_multi_paths_performance.py b/tests/TestSuite_pvp_multi_paths_performance.py
index b316f779..5428f2d3 100644
--- a/tests/TestSuite_pvp_multi_paths_performance.py
+++ b/tests/TestSuite_pvp_multi_paths_performance.py
@@ -177,7 +177,7 @@ class TestPVPMultiPathPerformance(TestCase):
 
     def handle_expected(self):
         """
-        Update expected numbers to configurate file: conf/$suite_name.cfg
+        Update expected numbers to configurate file: $DTS_CFG_FOLDER/$suite_name.cfg
         """
         if load_global_setting(UPDATE_EXPECTED) == "yes":
             for frame_size in self.test_parameters.keys():
diff --git a/tests/TestSuite_pvp_multi_paths_vhost_single_core_performance.py b/tests/TestSuite_pvp_multi_paths_vhost_single_core_performance.py
index 663cc45f..b3d0ac64 100644
--- a/tests/TestSuite_pvp_multi_paths_vhost_single_core_performance.py
+++ b/tests/TestSuite_pvp_multi_paths_vhost_single_core_performance.py
@@ -175,7 +175,7 @@ class TestPVPMultiPathVhostPerformance(TestCase):
 
     def handle_expected(self):
         """
-        Update expected numbers to configurate file: conf/$suite_name.cfg
+        Update expected numbers to configurate file: $DTS_CFG_FOLDER/$suite_name.cfg
         """
         if load_global_setting(UPDATE_EXPECTED) == "yes":
             for frame_size in self.test_parameters.keys():
diff --git a/tests/TestSuite_pvp_multi_paths_virtio_single_core_performance.py b/tests/TestSuite_pvp_multi_paths_virtio_single_core_performance.py
index b6432ca0..489e12de 100644
--- a/tests/TestSuite_pvp_multi_paths_virtio_single_core_performance.py
+++ b/tests/TestSuite_pvp_multi_paths_virtio_single_core_performance.py
@@ -178,7 +178,7 @@ class TestPVPMultiPathVirtioPerformance(TestCase):
 
     def handle_expected(self):
         """
-        Update expected numbers to configurate file: conf/$suite_name.cfg
+        Update expected numbers to configurate file: $DTS_CFG_FOLDER/$suite_name.cfg
         """
         if load_global_setting(UPDATE_EXPECTED) == "yes":
             for frame_size in self.test_parameters.keys():
diff --git a/tests/TestSuite_vf_single_core_perf.py b/tests/TestSuite_vf_single_core_perf.py
index ea4ccfb9..3b3b15e3 100644
--- a/tests/TestSuite_vf_single_core_perf.py
+++ b/tests/TestSuite_vf_single_core_perf.py
@@ -210,7 +210,7 @@ class TestVfSingleCorePerf(TestCase):
 
     def handle_expected(self):
         """
-        Update expected numbers to configurate file: conf/$suite_name.cfg
+        Update expected numbers to configurate file: $DTS_CFG_FOLDER/$suite_name.cfg
         """
         if load_global_setting(UPDATE_EXPECTED) == "yes":
             for fwd_config in list(self.test_parameters.keys()):
diff --git a/tests/TestSuite_vhost_cbdma.py b/tests/TestSuite_vhost_cbdma.py
index c0cc772d..02d7e25e 100644
--- a/tests/TestSuite_vhost_cbdma.py
+++ b/tests/TestSuite_vhost_cbdma.py
@@ -574,7 +574,7 @@ class TestVirTioVhostCbdma(TestCase):
 
     def handle_expected(self, mode_list):
         """
-        Update expected numbers to configurate file: conf/$suite_name.cfg
+        Update expected numbers to configurate file: $DTS_CFG_FOLDER/$suite_name.cfg
         """
         if load_global_setting(UPDATE_EXPECTED) == "yes":
             for mode in mode_list:
diff --git a/tests/TestSuite_vhost_user_live_migration.py b/tests/TestSuite_vhost_user_live_migration.py
index e50800d5..8796f16a 100644
--- a/tests/TestSuite_vhost_user_live_migration.py
+++ b/tests/TestSuite_vhost_user_live_migration.py
@@ -28,13 +28,14 @@
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
+import os.path
 import re
 import time
 
 import framework.utils as utils
 from framework.config import UserConf
 from framework.exception import VirtDutInitException
+from framework.settings import CONFIG_ROOT_PATH
 from framework.test_case import TestCase
 from framework.virt_common import VM
 
@@ -54,7 +55,7 @@ class TestVhostUserLiveMigration(TestCase):
                         "Insufficient ports for testing")
 
         # get mount info from cfg file
-        conf_info = UserConf('conf/%s.cfg' % self.suite_name)
+        conf_info = UserConf(os.path.join(CONFIG_ROOT_PATH, f'{self.suite_name}.cfg'))
         conf_session = conf_info.conf._sections['mount_info']
         self.mount_path = conf_session['backup_mount_path']
         self.share_path = conf_session['host_share_dir']
diff --git a/tests/TestSuite_virtio_user_for_container_networking.py b/tests/TestSuite_virtio_user_for_container_networking.py
index 037a1bd2..7c93d9a8 100644
--- a/tests/TestSuite_virtio_user_for_container_networking.py
+++ b/tests/TestSuite_virtio_user_for_container_networking.py
@@ -198,7 +198,7 @@ class TestVirtioUserForContainer(TestCase):
 
     def handle_expected(self):
         """
-        Update expected numbers to configurate file: conf/$suite_name.cfg
+        Update expected numbers to configurate file: $DTS_CFG_FOLDER/$suite_name.cfg
         """
         if load_global_setting(UPDATE_EXPECTED) == "yes":
             for frame_size in self.test_parameters.keys():
diff --git a/tests/rte_flow_common.py b/tests/rte_flow_common.py
index 969d3222..6c2782e9 100644
--- a/tests/rte_flow_common.py
+++ b/tests/rte_flow_common.py
@@ -41,7 +41,7 @@ CVL_TXQ_RXQ_NUMBER = 16
 # switch filter common functions
 def get_suite_config(test_case):
     """
-    get the suite config from conf/suite.cfg.
+    get the suite config from $DTS_CFG_FOLDER/suite.cfg.
     """
     suite_config = {}
     if "ice_driver_file_location" in test_case.get_suite_cfg():
diff --git a/tests/vhost_peer_conf.py b/tests/vhost_peer_conf.py
index c8802277..4dc47341 100644
--- a/tests/vhost_peer_conf.py
+++ b/tests/vhost_peer_conf.py
@@ -28,10 +28,12 @@
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+import os
 
 from framework.config import UserConf
+from framework.settings import CONFIG_ROOT_PATH
 
-conf_file = 'conf/vhost_peer_conf.cfg'
+conf_file = os.path.join(CONFIG_ROOT_PATH, 'vhost_peer_conf.cfg')
 conf_peer = UserConf(conf_file)
 conf_session = conf_peer.conf._sections['peerconf']
 
diff --git a/tools/setup.py b/tools/setup.py
index c70730c7..f4cc5d74 100755
--- a/tools/setup.py
+++ b/tools/setup.py
@@ -20,10 +20,12 @@ DTS_TOOLS = DTS_PATH + '/tools'
 DTS_SUITES = DTS_PATH + '/tests'
 DTS_EXECS = DTS_PATH + '/executions'
 
-DTS_EXEC_CFG = DTS_PATH + '/execution.cfg'
-DTS_CRBS_CFG = DTS_PATH + '/conf/crbs.cfg'
-DTS_PORTS_CFG = DTS_PATH + '/conf/ports.cfg'
-DTS_IXIA_CFG = DTS_PATH + '/conf/ixia.cfg'
+CONFIG_ROOT_PATH = os.environ.get("DTS_CFG_FOLDER") or os.path.join(DTS_PATH, "conf/")
+
+DTS_EXEC_CFG = os.path.join(DTS_PATH, 'execution.cfg')
+DTS_CRBS_CFG = os.path.join(CONFIG_ROOT_PATH, 'crbs.cfg')
+DTS_PORTS_CFG = os.path.join(CONFIG_ROOT_PATH, 'ports.cfg')
+DTS_IXIA_CFG = os.path.join(CONFIG_ROOT_PATH, 'ixia.cfg')
 
 sys.path.append(DTS_FRAMEWORK)
 sys.path.append(DTS_TOOLS)
