The development of directional IR countermeasure (DIRCM) technology, the research and improvement of the equipments of some foreign countries are described. And some DIRCM systems are introduced. The advantages and importance of developing DIRCM technology in modern wars are proposed. The characteristics of DIRCM technologies are discussed. The development of technologies such as laser, double-color IR warning and precision tracking are researched. And the market of DIRCM system is forecasted. At last, the development trend of DIRCM technology is described.