The meaning of Micromachine Membrane Deformable Mirror (MMDM) figure influence function is discussed, and the figure influence function matrix of oko company 37-channel MMDM is measured. The linear relationship between the deformation of mirror surface and single actuator voltages square is experimentally verified. MMDM correction capability is analyzed and a closed-loop correction model of adaptive optical system is established. An adaptive optical experimental system based on MMDM is built. Moreover, wavefront from human eyes is used as the incident wavefront of adaptive optics system. Experimental results show that the model can correct dynamic distorted wavefront aberration rapidly and effectively, is very suitable for adaptive optical system based on MMDM.