Abstract: Some experimental research work has been done on the passive noise control of the fighter cockpit, because of the larger noise generating under some circumstance. As to some fighter cockpit model in the research, using Microperforated Panel Absorber (MPA) structure, a passive noise control system is realized. And using Cada-X structure dynamics analysis system, a testing system to test vibration and noise controlling performance is established. It is applied to testing the controlling performance of the active or passive vibration and noise control system. At the same time, the theoretical result of the absorber coefficient was compared with the testing result of the microperforated panel absorber structure. The experimental result of the control performance of the passive noise control system, shows that the control effect was notable. All these proved the validity and feasibility of the method to the reducing of noise in the fighter cockpit.