The utility model discloses an amphibian vehicle, by the automobile body, locate driver's cabin and wheels component on the automobile body, be provided with the transmission shaft respectively on theshaft of wheel and the automobile body, two transmission shafts pass through universal joint swing joint, take turns the epaxial back shaft system that still is provided with, the automobile body downside still set up the wheel storehouse of accomodating the wheel, the automobile body on the activity be provided with the wheel storehouse and carry out the kuppe that seals, the utility model discloses pack up the back at the wheel, the kuppe passes through the advancing device parcel and lives wheel and wheel storehouse, covers wheel depressed part all around with irregular protruding to realize the local streamlined transition of automobile body, the reduction amphibious vehicle provides the support at water surface navigation's resistance for improving the amphibious vehicle water speed.