Abstract:The engineering research was carried out aiming at the disturbance isolation grade and tracing problem of the dynamic base optoelectronic steadily aiming and tracing system. It introduces the system total configuration and the engineering design theory which fiber optical gyro was adopted in system to eliminate base disturbances and to trace steadily aiming and tracing system of large dynamic target. And researched the stabilizing mechanism based on fiber optical gyro velocity stabilizing loop, engineering application requirement of fiber optical gyro as well as the design technique of current loop, stabilizing loop and the system tracing controller. A set of equipment was made lastly according to the design theory and technique, and the test result and tracing effect diagram is presented.