"Red Earth" domestic seeker is taken as an example, and the structure, work flow and tracking principle of the dynamic gyro laser seeker are introduced in detail. The mathematical model and modeling process of the laser seeker are described, and its application in rocket, ground missile, aviation bomb and other platforms is studied according to the characteristics of its dynamic gyro-stabilized platform. For the non-rotating missile controlled by tilting stable three-channel, the dispersion of seeker output slope can be effectively reduced by the seeker output slope compensation algorithm. For the rotating missile with dual-channel control, the seeker speed adaptive algorithm is proposed to realize the adaptive operation of the dynamic gyrostabilized platform laser seeker when the body speed is in the range of 0--10 r/s. The two algorithms have passed the simulation test and completed the engineering application after ground joint test and flight test.