The invention provides an underwater robot submarine wireless charging connection system, which comprises a submarine power supply device, a charging connection station and an underwater robot, wherein the submarine power supply device is connected with the charging connection station, and is used for generating power by using ocean energy and storing power, so as to provide electric power to thecharging connection station; the charging connection station is used for guiding the underwater robot to a preset charging position, and wirelessly charging the underwater robot; and the underwater robot is used for completing a preset observation task, and periodically transmitting observation data to a base station. The underwater robot submarine wireless charging connection system realizes non-contact type electric power transmission underwater, and the connection station realizes self-power supply by means of the submarine power supply device, so that the system can be applied in a deep sea environment far from the coastline; meanwhile, the applicability of the underwater robot submarine wireless charging connection system to the underwater robot is improved, and the underwater robot submarine wireless charging connection system has higher reliability and convenience.