Based on air pollution situation, make the ball with hydrogen floating in the air height of 50 meters as the aerial air pollution automatic detection mobile platform, based on sensor technology, embedded technology, thrust composite applications, GPRS, GPS and other hardware combined with the lower position machine applications、PC software system , conducted the system requirements analysis, software and hardware architecture design and description. The system solves the common aerial equipment’s problem of letting propeller blown air when detecting air parameters, using aerial balloon floating platform for air-parameter sensor automatically detects collection. Achieve operational automation, thus greatly reduce the work intensity of aerial air pollution monitoring and management, reduce the error of manual operation may occur, improve the efficiency of environmental protection, promote informatization construction of environmental protection work. This paper elaborates the overall design process of aerial air pollution automatic monitoring system.