Using a certain domestic brand of thermal reflective thermal insulation paint,alkyd enamel,and foreign triangle brand water-based heat-insulating paint,which are matched with commonly used primer to make three kinds of coatings,and the in-depth study the barrier effects of the three layers positive shooting mechanism.And the effect of thermal insulation coating on the wave permeability of the antenna surface was innovatively studied.Therefore,the coating with good compatibility,best heat insulation effect and the least impact on electrical properties is selected on the surface of a certain antenna.The purpose is to reduce the adverse effect of the temperature different on the accuracy of the antenna.