Because the test and debug of 1553B date bus network of the plane X has been in low efficiency and poor reliability before it is installed. The comprehensive test system developed a SMBUS-11 control tester, by analyzing the bus test system working principle, using MIL-STD-1553B protocol and PC, and through the software testing and verification. The system can not only complete the performance testing and fault diagnosis of the multi-channel 1553B data bus network and bus, but also can be used as a coupler in the network and test the bus terminal. Although it is mainly used for the experiment and adjustment before the 1553B data bus of the plane X is installed. It can also be used for simulation and test of 1553B bus system for aviation, aerospace, ships, missiles and armored vehicles and other various. The system is the most complete functions at home and abroad, using the most convenient, high reliability of 1553B bus simulation/test system, with high reliability, high universality, strong practicability and the characteristics of simple operation.