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The application provides an underwater fixed-distance luring camera device for shrimp culture, and relates to the technical field of aquaculture monitoring equipment. The underwater fixed-distance luring camera device comprises a water control terminal and an underwater collecting unit. The underwater collecting unit comprises a support connecting arm, and the support connecting arm is provided with an underwater camera module, a light supplementing assembly and a luring module. An observation cover plate is arranged on the shooting direction of the underwater camera module. A feeding outlet of the luring module is arranged towards the disc surface of the observation cover plate, and is used for feeding bait on the observation disc. The water control terminal comprises an intelligent main control terminal and an antenna. The application physically locks the shooting area in the best focal length range of the camera by using the observation cover plate, and enhances the picture by combining with an algorithm, so that the technical problem that ordinary cameras are difficult to capture clear images under water due to the fast swimming speed and uncertain position of shrimps is effectively solved.