This paper discusses the design and the realization of missile wing and rudder electric simulation load test system based on digital signal processor(DSP) TMS320LF2407 and direct torque control(DTC) servo driver ACS600. The rapidify of this system and operation principle of the system are presented. The rapidity of this system and the method of eliminating the superabundant torque are researched. Two key difficulties for speediness and eliminating the superabundant torque of the electric load simulation system are all investigated. Test result shows that the air resistance can be accurately and rapidly simulated. when missile wing and rudder are spreading.