Secure and stable control systems, wide-area protection and other regional power grid protection control systems are important means for ensuring the stable operation of a power grid. It is difficult for conventional test methods to complete a dynamic performance test of wide area protection control equipment at an installation site. Hence, a novel distributed collaborative test method based on real-time simulation is proposed. We integrate an Advanced Digital Power System Simulator (ADPSS), a power dispatching data network, a satellite time synchronization system based on the Global Positioning System (GPS) or the Beidou Navigation Satellite System (BDS), protocol conversion and other technologies. Then the distributed collaborative test master station, the data interface components, the test terminals and other key components are developed. The engineering application process of the proposed collaborative test is analyzed. Based on the security and stability control system of the power transmission section of the power grid in a certain area of Xinjiang, the on-site remote joint debugging test is completed, and the dynamic performance of remote multiple protection and control devices is verified. This work is supported by the National Natural Science Foundation of China (No. 51667020).