Submarine underwater searching device based on data communication

The invention relates to a submarine underwater searching device based on data communication. The device comprises a submarine front-end fixed frame, an image detection device and a superlong wave communication device, wherein the image detection device is arranged on the submarine front-end fixed frame and used for detect whether fishes exist in water under the submarine front-end fixed frame so that a submarine can transmit fish related information to an overwater fishing platform via the superlong wave communication device. Thus, the submarine can be helped to search rare fishes accurately and catch underwater fishes automatically.