The invention discloses a spatial resolution test system for testing photoelectric image processing devices, which comprises a shell, a motion mechanism, a collimator A (1), a collimator B (2), an incident light angle regulation control circuit, an electric stop A (1a) and an electric stop B (2a) which are arranged in the shell. The invention utilizes two motors to control the indicant light angle between the two collimators, to make the distance between the light outlet of the collimators and an object of 3 to 10m and make the angle theta of the two parallel rays of 1 to 10 degrees. The spatial resolution test system can preset control parameters to automatically generate a multi-spectrum infinite optical test image light beam directly radiated to the screen of an object, and then the system collects the imaging result to be compared with an emission image source light beam to test the system level resolution of the equipment.