The invention relates to a dual-fuel transport refueling method and a transport refueling truck. The dual-fuel transport refueling method comprises the following steps of: 1) preparing a fuel transport refueling truck, retrofitting a chassis of the fuel transport refueling truck by using an automotive chassis, and arranging a power takeoff, wherein the inside of an oil tank of the fuel transport refueling truck is divided into front and rear independent closed compartments through a partition plate, two kinds of oils are simultaneously filled in the two closed compartments, and a plurality of refueling guns are arranged at oil channel outlets of the two closed compartments; 2) determining oil of a vehicle which is required to be refueled, and parking the vehicle which is required to be refueled within the working range of the refueling guns of the corresponding closed compartment; 3) taking out one refueling gun which corresponds to the oil, and inserting into an oil tank of the vehicle which is required to be refueled; 4) starting an engine, wherein the engine of the automotive chassis drives an oil pump to work through the power takeoff so as to fill fuel in the closed compartment into the oil tank of the vehicle which is required to be refueled by using the refueling gun; and 5) after the operation is finished, shutting down the engine, and placing the refueling gun at the original position. The transport refueling truck can simultaneously fill two different kinds of fuels, has high motility and safety, and can refuel fire fighting vehicles at any time.