An effective debugging method for the development of Android smartphone is essential for enhancing productivity and marketability. Until now, however, Android kernel debugging methods have had too much dependency on hardware based debugging method which is expensive and complex to set up with even slow serial connection. To solve these problems, we have modified the existing android debugging architecture and have designed a new integrated debugging architecture which modifies the internal of KGDB for Android kernel. As a result, we have showed it adopts well with various Android smartphones through fast USB connection instead of the slow serial connection. This has improved the productivity in development of Android smartphone. By using this new debugging method, even common users can perform kernel debugging and redistribute the kernel easily.