The invention relates to a full-automatic oiling serving robot for an unmanned oiling station.The full-automatic oiling serving robot comprises an external-expansion type rail, a movable intelligent platform, an industrial mechanical arm, a function switching rotating disc, a humanoid mechanical gripper, an electric suction cup, a touch mechanical gripper, a machine vision system, a man-computer interaction system, an oiling gun, an oiling machine, an oil pipe and a control cabinet.Automatic station switching of different kinds of devices is achieved through the function switching rotating disc in cooperation with supports with different functions and the like, and switching efficiency is improved; full-automatic oiling operation of different vehicles is achieved by using the humanoid mechanical gripper, the electric suction cup and the touch gripper in a matched mode, and the serving range of the robot is expanded; shape and position identification of outer cover plates and oil tank covers of automobiles is achieved in combination with the machine vision system, and the functions of monitoring and identifying the running condition, automobile license plates, owner identity and the like are further achieved; due to the cooperation of the human-computer interaction system, the types of the automobile oiling services of the full-automatic oiling serving robot are richer, and the application range is wider.