Abstract: This invention applied in the field of the library function hook/replacement of an Android virtual machine discloses an Android dynamic framework and a method thereof. Firstly, the Android dynamic framework of the present invention starts the APP Launch process and checks the version; if the version needs patching, the Android dynamic framework would download the Hook Files including the Hook Apk and the DF_File; then, the Android dynamic framework would check if a hook is the Native Hook or not, if it is the Native Hook, the Android dynamic framework would compile the Hook Apk, and, if it is not the Native Hook, the Android dynamic framework updates the Hook Share Library; and finally, the Android dynamic framework restarts the APP.