Aiming at the high-speed computing demands of multiple periods security check in power systems, combined with the application of distributed computing technology to power systems security and stability analysis, a multi-scheme concurrent computing architecture for dispatching schedule security check is proposed. Computing data generation and security stability assessment with multiple periods of dispatching schedule are running in stages by the optimization of the security check calculation process. Based on multi-scheme concurrent mechanism, asynchronous concurrent opertation of multi-scheme security and stability computing tasks is accomplished. The method can significantly reduce the cycle of the security check of multiple periods dispatching schedule. The applications to actual power grid demonstrate the practicality and validity of the method.