The invention provides an off-line recognition method for alternating current asynchronous motor mutual inductance parameters. An inverter based on an alternating current asynchronous motor and connected with the input end of the alternating current asynchronous motor, a controller controlling the inverter to output currents through PWN signals and a sensor used for detecting currents of the alternating current asynchronous motor are included. The sensor transmits detected currents to the controller for adjusting the PWM signals. The alternating current asynchronous motor comprises a stator and a rotor. According to the off-line recognition method for alternating current asynchronous motor mutual inductance parameters, no extra devices or circuits are needed, only the resistance value of the fixed rotor of the alternating current asynchronous motor needs knowing, the measurement of the resistance value of the fixed rotor of the alternating current asynchronous motor is simple, the precision of parameters can meet FOC control requirements, and the purpose that the alternating current asynchronous motor recognizes mutual inductance parameters on the static condition is achieved. The recognition method is simple and brings convenience to project implementation.