An automobile with an automatic oil filling function comprises an automobile body, a cab, front wheels and rear wheels. The tail portion of the automobile body is connected with a flue gas conveying pipe which is connected with a flue-gas-oil converting device, a chimney is arranged on the top of the flue-gas-oil converting device, a first oil storage tank is connected to the lower portion of the flue-gas-oil converting device, the first oil storage tank is connected with a second oil storage tank which is connected with a third oil storage tank, and crawler wheels are arranged at the bottom of the first oil storage tank, the bottom of the second oil storage tank, and the bottom of the third oil storage tank. The automobile with the automatic oil filling function can automatically collect automobile exhaust, does not allow exhaust gas to be exhausted into air, air quality can be improved, human health is guaranteed, and damage of the automobile is minimized.