The laser seeker is one of the important parts of precision guided weapon system, which has the function of target detection and real-time tracking. In order to ensure the hit accuracy of missile, the output accuracy of laser seeker tracking angular velocity should be controlled within a certain range. Because the efficiency of the gyroscope correction system of seeker decreases at low temperature, the output of tracking angular velocity is discrete and the precision is reduced, a low temperature piecewise compensation method is proposed. A large number of temperature tests show that this method can rapidly improve the debugging efficiency of the low temperature output characteristics of laser seeker, and ensure the consistency of product quality.