A data acquisition system based on the core controller of C8051F350 and wireless communication module was designed. The designs of software synchronization and correlation processing during wireless data transmission were introduced. A method was put forward，which obtained the time difference during data wireless transmission by multiple tests and calculation，then realized the synchronous data acquisition for the system after time compensation. This method was validated by multiple tests on the same signal and would provide accurate data measurement for the system of fighter joystick/rudder control force-displacement performance test and evaluation.