The mobile pump truck has the characteristics of large flow rate, high suction lift and fast water filling speed. Pump trucks can be equipped with various pump products, such as end-suction pumps, mixed-flow pumps, self-priming pumps, etc., which are all pumps with large drainage flow and light weight. Urban roads, village roads, tunnel emergency and emergency drainage in various messy working conditions, especially in the case of low liquid level pumping and drainage, long-distance pumping and drainage, etc., the large flow drainage pump truck can quickly relieve the drainage pressure in emergency flood situations.