diff --git a/tools/mkdist.py b/tools/mkdist.py
index 7765873baa..a29db7b080 100644
--- a/tools/mkdist.py
+++ b/tools/mkdist.py
@@ -105,6 +105,18 @@ def bsp_update_sconstruct(dist_dir):
                     f.write('if not os.getenv("RTT_ROOT"): \n    RTT_ROOT="rt-thread"\n\n')
             f.write(line)
 
+def bsp_update_kconfig_testcases(dist_dir):
+    # delete testcases in rt-thread/Kconfig
+    if not os.path.isfile(os.path.join(dist_dir, 'rt-thread/Kconfig')):
+        return
+
+    with open(os.path.join(dist_dir, 'rt-thread/Kconfig'), 'r') as f:
+        data = f.readlines()
+    with open(os.path.join(dist_dir, 'rt-thread/Kconfig'), 'w') as f:
+        for line in data:
+            if line.find('examples/utest/testcases/Kconfig') == -1:
+                f.write(line)
+
 def bsp_update_kconfig(dist_dir):
     # change RTT_ROOT in Kconfig
     if not os.path.isfile(os.path.join(dist_dir, 'Kconfig')):
@@ -307,11 +319,14 @@ def MkDist_Strip(program, BSP_ROOT, RTT_ROOT, Env):
     do_copy_file(os.path.join(RTT_ROOT, 'libcpu', 'Kconfig'), os.path.join(target_path, 'libcpu', 'Kconfig'))
     do_copy_file(os.path.join(RTT_ROOT, 'libcpu', 'SConscript'), os.path.join(target_path, 'libcpu', 'SConscript'))
 
+    print('Update configuration files...')
     # change RTT_ROOT in SConstruct
     bsp_update_sconstruct(dist_dir)
     # change RTT_ROOT in Kconfig
     bsp_update_kconfig(dist_dir)
     bsp_update_kconfig_library(dist_dir)
+    # delete testcases in Kconfig
+    bsp_update_kconfig_testcases(dist_dir)
     # update all project files
     bs_update_ide_project(dist_dir, target_path)
 
@@ -374,12 +389,14 @@ def MkDist(program, BSP_ROOT, RTT_ROOT, Env, rttide = None):
     do_copy_file(os.path.join(RTT_ROOT, 'README.md'), os.path.join(target_path, 'README.md'))
     do_copy_file(os.path.join(RTT_ROOT, 'README_zh.md'), os.path.join(target_path, 'README_zh.md'))
 
+    print('Update configuration files...')
     # change RTT_ROOT in SConstruct
     bsp_update_sconstruct(dist_dir)
     # change RTT_ROOT in Kconfig
     bsp_update_kconfig(dist_dir)
     bsp_update_kconfig_library(dist_dir)
-
+    # delete testcases in Kconfig
+    bsp_update_kconfig_testcases(dist_dir)
     # update all project files
     if rttide == None:
         bs_update_ide_project(dist_dir, target_path)