In accordance with the requirements of aviation motor reliability test, in order to improve the detection precision of the motor, this paper designed a kind of practical operation situation of aviation motor control system, adopts oil cooling method, designs and uses of Siemens S7200 series PLC module for the main control module, a touch screen interface design software for WinCC flexible, through the touch screen to monitor system of realtime data, realtime and dynamic display system of the collected runtime test parameters, observation of the whole system operation, alarm, analysis and control in case of emergency. Simulation results show that the control system can well realize realtime monitoring of the parameters in the oil source system, improve the detection efficiency and precision of air motor, achieve automation and intelligent system.