Updating method and device of transformation-free SDK (Software Development Kit) Wrapping

The invention discloses a modification-free SDK (Software Development Kit) Wrapping updating method and device, and the method comprises the steps: extracting resources of an installation package of an original integrated SDK, and carrying out ZIP compression to generate an incremental package; when the application needs to be updated, the generated incremental package is decompressed; checking information of the original installation package and the new installation package by using an analysis tool so as to determine whether incremental synthesis is supported or not; if the SDK resource file supports the new installation package, implanting the decompressed SDK resource file into the new installation package, modifying a list file in the new installation package, replacing an Application entry program in the list file, and implanting an SDK initialization code fragment into a new program so as to realize SDK Wrapping incremental updating; and finally, re-signing the APK installation package after incrementa