Liquid level detection device, engine oil tank and vehicle

The utility model relates to a liquid level detection device, an engine oil tank and a vehicle, the liquid level detection device comprises a sleeve, one end of the sleeve is connected with the bottom of a liquid storage container, and the sleeve is provided with a communicating hole along the radial direction; the floating piece is located in the sleeve, and the periphery of the floating piece is provided with a guide face matched with the inner circumferential wall of the sleeve; the indicating piece is connected with the floating piece; the liquid level marking piece is arranged in the liquid storage container, and the liquid level marking piece can display a plurality of liquid level values; wherein the floating part can float on liquid in the liquid storage container and can respond to the liquid amount in the liquid storage container to move, and the indicating part can follow the movement of the floating part to point to the corresponding liquid level value. According to the liquid level detection devi