Light source correction system

The invention provides a light source correction system which comprises a light emitting unit for emitting specific light, a target object and a projection device, wherein the target object can move in a light path of the specific light; the projection device can project a picture and is provided with a light receiving unit and a light reflection application unit; the light receiving unit is used for receiving corrected light and correcting the light reflection application unit according to the intensity of the corrected light; and the corrected light is reflected light obtained by reflecting the specific light by the target object. According to the light source correction system, when the projection device performs interaction operation, the light reflection application unit identifies an interference source and an effective light source by referring an intensity parameter table of the special light reflected by the target object so as to avoid false operation.