Automobile fuel tank and automobile adopting same

The utility model discloses an automobile fuel tank and an automobile adopting same, wherein, the automobile fuel tank comprises a tank body and a fuel oil discharging nozzle; an orifice is formed at the bottom of the tank body; the orifice part of the tank body is in the shape of a bell mouth that protrudes outwards; and the fuel oil discharging nozzle is embedded in the orifice and is fixedly connected with the orifice. In the automobile fuel tank and the automobile adopting the same, the orifice part at the bottom of the fuel tank is in the shape of the bell mouth and the fuel oil discharging nozzle is embedded in the orifice, so that the contact area of the fuel oil discharging nozzle and the edge of the orifice is increased, the stress concentration at the joint of the fuel oil discharging nozzle and the orifice is reduced, the connection reliability of the fuel oil discharging nozzle and the orifice is improved, gaps can be prevented from being formed between the fuel oil discharging nozzle and the orifice, and the fuel tank can be further prevented from oil leakage effectively.