An underwater drone is disclosed. The underwater drone includes a horizontal propeller module and a vertical propeller module to respectively provide a drone body with a horizontal proceeding force and a vertical lifting or diving force. The underwater drone includes a horizontal channel and a vertical channel, which allow the water to pass through for reducing resistance when the underwater drone moves forwards, upwards or downwards. The underwater drone is equipped with a buoy member with an antenna portion of a communication module disposed therein. The underwater drone is equipped with the fishing device, the fish finding device and the image capturing module. Therefore, the underwater drone is capable of fishing, rapidly moving and wireless remote control.