When traditional laser communication is interfered by strong electromagnetic interference,it leads to the failure of electrical auxiliary guidance methods,and the initial pointing cannot be established.In order to solve the problem of abnormal laser communication due to strong electromagnetic interference,a control technology combining servo control technology for all optical capture is proposed.The method is an analytical study of the optical model of all optical guidance,which leads to the all optical guidance tracking mathematical model,based on which servo control technology is added to improve the fusion of the Gauss Seidel Method algorithm,so as to control the rapid capture,precise pointing and tracking of two independent laser communication terminals.The experimental results show that the designed capture scheme can perform azimuth scanning at 90°/s throughout the entire cycle and complete capture at an elevation of 20° within 55 seconds,which makes the laser communication has broad application prospects for rapid chain building under silent conditions.