Blockchain-based decentralized Application is becoming more widely accepted because is is publicly run on the blockchain and cannot be modified implicitly. However, the fact that only a few developers can master both blockchain and front-end programming skills results in the error-prone DApps especailly when smart contracts has undergone a migration. In this paper, we first summarized 6 categories of migration and proposed an approach to find out where and what types of changes have happened. In order to make mapping relationship with any omission, we designed a function call graph structure to ensure accuracy and compared it with migration situation via analyzing different versions of ABI. We developed a automated tool to implement our approach in a real-world DApp and acquired effective results which precisely shown the migration categories and needed revising hints.