Abstract: The vibro-acoustic characteristics of fuel cell vehicle are measured as air-condition compressor runs independently.And it is clarified that the air-condition compressor is one of main vibrational noise sources because the bracket resonance due to its lower inherent frequency consistent with the compressor operating frequency causes body panels vibration to generate the noise from air-condition compressor to car interior.Using reinforced material to en-hance the stiffness of the compressor bracket can avoid its resonance effectively,and the car interior noise can be reduced by more than 2dB.