Business contract calling method and system

The invention provides a business contract calling method and system, and the method is applied to the business contract calling system comprising a business end, a block chain and a transaction contract end, and comprises the steps: triggering an overall transaction submission process after the business end completes the calling of all business contracts; the block chain obtains all business contract calling request results stored in the temporary calling stack according to the overall transaction submission process; the block chain sends the request result to the transaction contract end through the block chain endorsement node; the transaction contract end calls business contracts in sequence according to the request result, and obtains a calling result of calling the business contracts; and the block chain updates a local business transaction result according to the calling result. According to the method and the system, the transaction contract can be used for supporting the block chain transaction opera