The bandwidth of traditional 1 Mbps 1553B bus is limited, so it is gradually replaced by 4 Mbps high-speed 1553B bus in the field of aerospace measurement and control. While the general high-speed 1553B bus tester does not have the functions of precise timing control, dynamic message insertion and system fault recovery, so it is difficult to simulate the actual working condition of the system. Therefore, a high-speed 1553B intelligent universal bus test platform is designed by using the bus initialization configuration and data transmit-receive control in each mode, SDRAM dynamic reading and writing, hardware timing trigger technology, as well as the redundant bus control mechanism based on heartbeat and message monitoring. By adjusting message length, message content and message interval, the correctness of the bus test platform functions including BC-RT, RT-BC, RT-BC and MT monitoring is verified, which meets the requirements of precise timing control, dynamic message insertion and system fault recovery. The platform can be used for hardware in the loop simulation, timing function verification and real system load status test.