The good operation characteristics of permanent magnet (PM) assisted synchronous reluctance motors are closely related to the inductance parameters, so it is necessary to accurately calculate the inductance parameters in the electromagnetic design. The principles of the equivalent d-q axis method, static field method, transient field method and frozen permeability method are introduced, and the d-q axis inductance parameters are calculated. The inductance parameters of the prototype are tested by voltammetry experiment. The simulation results are compared with the test results to verify the accuracy of the methods. It is shown that the difference between the simulation results of frozen permeability method and the test results is within 3% and the frozen permeability method is more accurate among the four methods analyzed.