Abstract: For complex electromagnetism environment in coal mine underground and poor anti-interference ability of existing mine-used wireless communication systems, the paper analyzed feasibility of application of transform domain communication system in coal mine underground and proposed design schemes of transmitter and receiver of mine transform domain communication system. It also simulated and researched power spectrum, power spectrum after comparing threshold, modulation waveform and bit error rate of the system through simulating underground electromagnetism environment. The analysis result showed that the system has good anti-interference and anti-noisy performance and low bit error rate, and can realize wireless communication effectively in complex electromagnetism environment.