The utility model discloses a smog penetration function testing system for video equipment. The smog penetration function testing system includes an enclosed haze environment testing cabinet, a haze generating chamber and a haze waste gas processing chamber are arranged outside the haze environment testing cabinet, a tripod holder is arranged outside the haze environment testing cabinet, the video equipment is arranged on the tripod holder, the inside bottom of the haze environment testing cabinet is provided with a turbine air circulation fan, an anti-deposition fan, a moving guide rail, and a movable object table, one side, facing the video equipment, of the movable object table is provided with a lamp box, a test chart card is arranged on the lamp box, an illuminating lamp is arranged in the inner top of the haze environment testing cabinet, and the outer top of the haze environment testing cabinet is provided with an air-exchange device and a sealing sliding door. The testing system solves the problems that a penetration function testing device in the prior art only performs fixed testing and is unable to carry out the testing in a dark environment, and provides a flexible and effective testing method for studying the smog penetration capability of the video equipment.