During the simulation test, all equipment require communication but they have their own communication modes, thus, the mission of simulation cable network is to carry out normal communication between different communication modes to guarantee normal operation of simulation system. Theoretically, it is required that signals transmitted by simulation cable network shall be without any attenuation and delay; practically, it is impossible. In the hardware-in-the-loop simulation test, basic requirements to simulation cable network is that information transmission must satisfy such requirements as high transmission accuracy, good anti-interference performance and quick transmission speed and satisfactory real-time simulation.