The composition and working principle of the airborne laser communication system are introduced,and analysis is made to the key technologies of the system.Based on the characteristics of airborne platform,the airborne laser communication system and the prototypes were designed,which were verified through ground test and distance test.The experimental results show that this system can realize 20 km to 100 km long-distance communication with bit-error-rate lower than 10-6 and communication bandwidth up to 1.25 Gb·s-1/155 Mb·s-1.The performance index can completely satisfy the design requirements.