In order to improve moving mirror drive of Fourier transform infrared spectrometer,we design a dynamic scanning system based on flexible hinge support.Using the flexible hinge support way and the voice coil motor drive mode.Specifically,Using right Angle with high accuracy high stability type flexible hinge support mechanism support moving mirror,dynamic mirror can be moved forward and backward driven by voice coil motor reciprocating motion,DSP control system to control the moving mirror at a constant speed.The experimental results show that the designed of moving mirror scanning system has advantages of stability direction,speed stability,superior seismic performance.