The sewage suction truck is a new type of sanitation vehicle that collects, transfers, cleans, and transports sludge, sewage, and avoids secondary pollution. The sewage suction truck can self-absorb and discharge. It has fast working speed, large capacity and convenient transportation. It is suitable for collecting and transporting feces, mud, Liquid substances such as crude oil. The sewage suction truck adopts the domestic technology-leading vacuum pump of the sewage suction truck, which has a large suction force and a long suction range. It is especially suitable for the suction, shipment and discharge of the sludge in the sewer, especially the sewage slurry, silt, stones, and bricks. Large objects such as blocks.