To implement the multi-directional test of WAMS application system, and to satisfy the requirement for the flexibility and reusability of WAMS application system, the test platform of WAMS application system is designed and built. Firstly, the basic functions, the platform components and software structure of the test platform of WAMS application system are described. Then, the realization of data model and multi-source data interface and other aspects are expounded in detail. Finally, by using the test platform developed completely, the test case aiming at the disturbance source location system based on the WAMS data is produced, and test work of the disturbance source location system based on WAMS data is finished. The test results verify the accuracy and practicability of WAMS application system. Moreover, it proves the use value of the test platform; the test platform of WAMS application system can not only reduce workload of the test work remarkably, but also enhance the standardization degree of the test program and the reusability of the test case, which plays an important role in reducing the research cost of the WAMS application system and speeding up the progress of the research.