To inspect whether abnormal noise is produced in a vehicle compartment before attaching an antivibration device to the vehicle, and to enable identification of the cause for the abnormal noise.

This method has an input step (S1, 2) for applying a predetermined input to the antivibration device 1 mounted on a vibration exciting apparatus 3, a measurement step (S3, 4) for measuring a transmission force, and a determination step (S5, 6) for performing FFT processing of time series measurement data of the transmission force to perform its frequency resolving, extracting data in a specific frequency band and performing its reverse FFT processing after that to return it to time series data, and then based on data values in a specific time section of this data, determining whether or not abnormal noise will be produced in the vehicle compartment attached with the antivibration device 1.