Abstract: How to verify whether the CBTC system designed and produced by different manufacturers conforms to the standard requirements of interoperation has become the bottleneck of engineering application and promotion. The architecture of interoperable CBTC system is defined, then the test requirements of CBTC system interoperation are analyzed, and the technical requirements of the test and verification platform for CBTC system interoperation are put forward. On this basis, the test and verification platform for interoperable CBTC system is designed and realized. Actual application shows that the platform can conduct comprehensive functionality, performance and interface tests on the interoperable CBTC system and its subsystems, solving technical difficulties in the verification of interoperation of CBTC system.