diff --git a/bsp/at32/at32f403a-start/Kconfig b/bsp/at32/at32f403a-start/Kconfig
index 7a400db91f..1a3b4b75bc 100644
--- a/bsp/at32/at32f403a-start/Kconfig
+++ b/bsp/at32/at32f403a-start/Kconfig
@@ -17,6 +17,5 @@ config PKGS_DIR
 
 source "$RTT_DIR/Kconfig"
 source "$PKGS_DIR/Kconfig"
-source "../libraries/Kconfig"
+source "../Libraries/Kconfig"
 source "board/Kconfig"
-
diff --git a/bsp/at32/at32f403a-start/rtconfig.py b/bsp/at32/at32f403a-start/rtconfig.py
index 1d63cabb96..5f2f01ca76 100644
--- a/bsp/at32/at32f403a-start/rtconfig.py
+++ b/bsp/at32/at32f403a-start/rtconfig.py
@@ -1,4 +1,5 @@
 import os
+import sys
 
 # toolchains options
 ARCH='arm'
@@ -57,7 +58,7 @@ if PLATFORM == 'gcc':
     else:
         CFLAGS += ' -O2'
 
-    CXXFLAGS = CFLAGS 
+    CXXFLAGS = CFLAGS
 
     POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' + SIZE + ' $TARGET \n'
 
@@ -88,7 +89,7 @@ elif PLATFORM == 'armcc':
     else:
         CFLAGS += ' -O2'
 
-    CXXFLAGS = CFLAGS 
+    CXXFLAGS = CFLAGS
     CFLAGS += ' -std=c99'
 
     POST_ACTION = 'fromelf --bin $TARGET --output rtthread.bin \nfromelf -z $TARGET'
@@ -136,8 +137,14 @@ elif PLATFORM == 'iar':
 
     LFLAGS = ' --config "board/linker_scripts/link.icf"'
     LFLAGS += ' --entry __iar_program_start'
-    
+
     CXXFLAGS = CFLAGS
 
     EXEC_PATH = EXEC_PATH + '/arm/bin/'
     POST_ACTION = 'ielftool --bin $TARGET rtthread.bin'
+
+def dist_handle(BSP_ROOT):
+    cwd_path = os.getcwd()
+    sys.path.append(os.path.join(os.path.dirname(BSP_ROOT), 'tools'))
+    from sdk_dist import dist_do_building
+    dist_do_building(BSP_ROOT)
diff --git a/bsp/at32/tools/sdk_dist.py b/bsp/at32/tools/sdk_dist.py
new file mode 100644
index 0000000000..01ff930b20
--- /dev/null
+++ b/bsp/at32/tools/sdk_dist.py
@@ -0,0 +1,19 @@
+import os
+import sys
+import shutil
+cwd_path = os.getcwd()
+sys.path.append(os.path.join(os.path.dirname(cwd_path), 'rt-thread', 'tools'))
+
+# BSP dist function
+def dist_do_building(BSP_ROOT):
+    from mkdist import bsp_copy_files
+    import rtconfig
+    
+    dist_dir  = os.path.join(BSP_ROOT, 'dist', os.path.basename(BSP_ROOT))
+    library_path = os.path.join(os.path.dirname(BSP_ROOT), 'Libraries')
+    library_dir  = os.path.join(dist_dir, 'Libraries')
+    print("=> copy bsp drivers")
+    bsp_copy_files(os.path.join(library_path, 'rt_drivers'), os.path.join(library_dir, 'rt_drivers'))
+    print("=> copy bsp library")
+    bsp_copy_files(os.path.join(library_path, rtconfig.BSP_LIBRARY_TYPE), os.path.join(library_dir, rtconfig.BSP_LIBRARY_TYPE))
+    shutil.copyfile(os.path.join(library_path, 'Kconfig'), os.path.join(library_dir, 'Kconfig'))
diff --git a/tools/mkdist.py b/tools/mkdist.py
index ec527d87e1..d83020f755 100644
--- a/tools/mkdist.py
+++ b/tools/mkdist.py
@@ -122,7 +122,7 @@ def bsp_update_kconfig(dist_dir):
                 line = line[0:position] + 'default "rt-thread"\n'
                 found = 0
             f.write(line)
-            
+
 def bsp_update_kconfig_library(dist_dir):
     # change RTT_ROOT in Kconfig
     if not os.path.isfile(os.path.join(dist_dir, 'Kconfig')):
@@ -141,7 +141,7 @@ def bsp_update_kconfig_library(dist_dir):
                 found = 0
             f.write(line)
 
-    # change board/kconfig path 
+    # change board/kconfig path
     if not os.path.isfile(os.path.join(dist_dir, 'board/Kconfig')):
         return
 
@@ -215,11 +215,11 @@ def MkDist_Strip(program, BSP_ROOT, RTT_ROOT, Env):
         shutil.copyfile(os.path.join(library_path, 'Kconfig'), os.path.join(library_dir, 'Kconfig'))
 
     # do bsp special dist handle
-    if 'dist_handle' in Env:       
+    if 'dist_handle' in Env:
         print("=> start dist handle")
         dist_handle = Env['dist_handle']
         dist_handle(BSP_ROOT)
-        
+
     # get all source files from program
     for item in program:
         walk_children(item)