Abstract: We put forward a scheme of increasing system stability to control camera platform based on microprocessor,after our research on airborne photography equipment attitude control of UAV in the process of operation.This system is composed of three axis attitude sensor,a microprocessor and a servo motor closed-loop control circuit.It can realize the stability augmentation control,solve the posture stabilization control problem on the UAV aerial platform assisted by the software.So,it can improve the precision of large scale unmanned aerial photogrammetric technology in low altitude.