The utility model relates to a remote control adjustable illuminance floodlight. The utility model solves the problem that the illuminance of spotlights and the projection direction of light rays can not be adjusted conveniently. The utility model is characterized in that three to then single lights are arranged in a light, each of the single lights can be gathered and dispersed to adjust illuminance, and the utility model can be vertically and horizontally swung synchronously to adjust an irradiation site. The utility model is used for architectural lighting, artificial lighting, isinfection and physiotherapy.