diff --git a/components/external/ftk/SConscript b/components/external/ftk/SConscript
index 0c125061c6ad9c1d5346df4f6304c4b8edec8119..3bb294871a7bbc7dc611058928c9c17baf864776 100644
--- a/components/external/ftk/SConscript
+++ b/components/external/ftk/SConscript
@@ -1,7 +1,18 @@
 # for module compiling
 import os
+from building import *
 Import('RTT_ROOT')
 
-objs = SConscript('ftk/src/os/rt-thread/SConscript')
+if os.path.isfile(os.path.join(RTT_ROOT, 'components', 'external', 'ftk',
+    'ftk/src/os/rt-thread/SConscript')):
+    objs = SConscript('ftk/src/os/rt-thread/SConscript')
+else:
+    if GetDepend('RT_USING_FTK'):
+        print '================ERROR============================'
+        print 'Please get ftk file and put them under ftk folder'
+        print '================================================='
+        exit(0)
+
+    objs = []
 
 Return('objs')