In the recent local wars, air to air missile plays an very important role in controlling airsupremacy,for which many countries commence to develop and equip new generation air to air missile. Firstly, the modem air-combat＇s requirements for new generation short-range dogfight IR missile are analyzed in the article,and it is pointed out that interception of cruise missile will be combat mission of new generation short-range dogfight IR missile.Then,the development trends of foreign new generation short-range dogfight IR missile are introduced, including U.S. AIM-9X,Britain ASRAAM and Germany IRIS-T.Finally,the key technologies generally used by new generation short-range dogfight IR missile,such as the advanced aerodynamic configuration/system design,IIR guidance,aerodynamic/TVC complex control and small strap-down inertial guidance system,are discussed.