Surface-type infrared jamming is one of the new countermoves to infrared imaging guiding missiles. The operation process and target identification of an infrared imaging guiding missile are analyzed. The use of surface-type infrared jamming and the evaluation norm of its jamming effectiveness are studied respectively in both target identification phase and target tracking phase when the infrared imaging homing head is jammed. The ability of the surface-type infrared jamming to countermeasure infrared imaging guidance is evaluated. By taking the tracking state, tracking error and miss-distance as the basis, the evaluation norm implements the quantitative evaluation of the jamming effectiveness of the surface-type infrared jamming after the success rate of jamming is counted. This evaluation method is simple and reasonable. Its evaluation result is objective and effective.