Surface-type infrared decoy is a new decoy which can jam infrared imaging guided missiles effectively. It can jam the approaching missiles by simulating the infrared signatures of the object to be protected. The development of the surface-type infrared decoys at home and abroad and their operation mechanisms are presented. The methods for testing the surface-type decoys in ship Electronic Countermeasure (ECM) are analyzed. This work is helpful to the evaluation of surface-type infrared decoys.