With the advantages of metal rubber materials in vibration damping, a vibration damping plan based on a metal-rubber vibration absorber was proposed to damp the vibration for the integrated instrument installation plate of a aerocraft. A mechanical model of the metal-rubber vibration absorber was established and the design and performance parameters of the metal damping pad structure were designed. Then the instrument installation plate designed with integrated vibration damping method was simulated. At last, a ground vibration experiment was designed to test the vibration of the instrument installation plate. The results show that the analysis results are in agreement with ground experiment ones basically, and the stiffness meets the design requirements. Furthermore, with the integrated vibration damping by the metal-rubber vibration absorber, the random vibration amplitudes of the measuring points on the plate has a remarkable energy attenuation above 300 Hz and the random response mean square root attenuation is no less than 56.5％ below 300 Hz as comparing to the instrument installation plate with a rigid connection.