New jamming technology makes the single band infrared imaging guidance weapons to face enormous challenges. Dual color IR imaging guidance technology has been regarded as one of the developing directions of IR guided missiles for its improved countermeasure ability. Firstly, the foreign air-to-air missile dual color IR imaging guidance technologies is analyzed, then the key technology for air-to-air missile dual color IR imaging seeker is studied. Approaches such as dual band selection, dual color detector fabrication, imaging preprocessing, dual color optical system design and dual color image counter-countermeasures are proposed. In the end，the measures and suggestions for further research are proposed.