The Lavatory Service Truck is a self-propelled special ground equipment at the airport that provides toilet flushing water to aircraft and receives sewage from aircraft toilets through on-board equipment. This truck is designed with a rear-mounted lifting work platform and a medium-mounted large-capacity clean water tank and sewage tank. The water tank is made of high-quality food-grade stainless steel plates and is firmly welded by argon arc welding. High-quality food-grade stainless steel water pumps are used. A vacuum pump is configured for simple and convenient operation. Water level displays and flowmeters are configured to make operations simpler and more convenient. According to customer needs, a heating inner tank insulated water tank, which is the first of its kind in China, can be configured. The lifting range of the lifting platform at the rear can meet the needs of all aircraft models. The hydraulic and electrical components of the whole vehicle are all configured with European and American brands. The vehicle is equipped with an intelligent management system and an active anti-collision system to ensure safer vehicle operation.