As a heavy professional foam fire truck, its core is capable of foam and clean water dual mode fire fighting, accurately adapting to Class A and B fires, focusing on efficient handling of medium and large fires, and adapting to high-risk and complex rescue scenarios. It is equipped with an efficient foam proportion mixing system, which can accurately adjust the mixing proportion by 0.3% -6%. It is compatible with a variety of special foam solutions such as protein foam, aqueous film forming foam, etc. After being covered with foam, it can quickly isolate oxygen suffocation, block radiant heat, and efficiently fight gasoline, diesel, chemical solvents and other flammable liquid fires (Class B), especially suitable for high-risk areas such as oil depots, chemical parks, large gas stations, with fast fire extinguishing speed and outstanding anti rekindling effect. At the same time, it can flexibly switch between clear water fire extinguishing modes, relying on high-power fire pumps to pressurize and spray, efficiently extinguish solid material fires (Class A), achieve multi-purpose use of one vehicle, meet the needs of fire disposal in multiple scenarios such as urban main roads, large factory areas, and high-rise buildings, and balance professionalism and universality.