The invention discloses an acoustic wave communication method based on a nonlinear effect. Data needing to be transmitted is converted into FDM signals; the FDM signals are modulated to an ultrasonicfrequency band; the amplitude modulated signals are inaudible high frequency signals; the high frequency signals are amplified and then are sent out by a loudspeaker; the received inaudible high frequency signals are demodulated through utilization of the nonlinear effect of a microphone circuit, so the FDM signals modulated on high frequency carrier signals are restored; and the FDM signals are further demodulated to obtain to-be-transmitted original data. According to the method, on the premise of ensuring a communication bandwidth, the problem of audibility is solved. Compared with the 4kHzbandwidth of approximate ultrasonic communication, the bandwidth is improved by approximate 3 times. A final communication rate may reach 16.29kbps. An error bit rate is low.