Aiming at the special status and function of test equipment and the existing problems of test equipment maintenance support system under the new situation, the test equipment maintenance support system of data + model and function coupling is constructed. Combined with the rapid development of data engineering technology and the wide application of big data technology, based on the realization of the integration and utilization of maintenance resources, the optimization and application of maintenance forces, the fast and efficient command and management, the intelligent construction of regulations and standards, and the improvement of test equipment maintenance support efficiency, this paper expounds the data-driven mode. The optimization process and operation mode of command, force, resource, regulation and standard of test equipment maintenance support system. The results show that the system provides methods and ideas for optimizing the function of maintenance support system and exerting the value of elements, and provides a reference for the development of digital and intelligent maintenance support of test equipment.