Abstract: This article is about the accurate method of account checking in the situation of 7×24 hours transactions between telecom multiple systems. The systems we discussed here provide services individually. There is an Account Checking Controlling Server, and all the systems are connected with the Account Checking Controlling Server, the transaction between systems is distributed by Account Checking Controlling Server. Account Checking Controlling Server is in charge of control and manage the transaction of account checking between systems, it is consists of transaction management module, account checking cycle management module, transaction flow module and account checking management module. Transaction management module is in charge of storage and handle the system information and the system distribute rules. Account checking cycle management module is responsible for create and manage the account checking cycle. Transaction flow module realize the specific transaction.