The utility model relates to a mobile serial-parallel comprehensive experimental device for a water pump and belongs to the technical field of hydraulic experimental devices. The device comprises two sets of water pump systems, a control box, connecting pipelines and switching valves. An experimental system is fixed on a mobile frame with wheels, and water pumps, a water tank, flowmeters, the control box and the pipelines of the system are fixed on a support and crosspieces of the mobile frame; each set of water pump system comprises a water pump, a temperature sensor, a water inlet valve, a vacuum gauge, a pressure gauge, a Venturi flowmeter, a flow regulating valve, a rotameter, a water inlet pipe and a water conveying pipe, the water inlet pipe is connected with the water pump and the water tank, the water conveying pipe is connected with the water pump and a water outlet header pipe, and an outlet of the water outlet header pipe is connected with the water tank; and the water conveying pipes of two sets of water pump systems are connected in series or in parallel through the switching valves so that a water pump characteristic curve is obtained. The utility model has the advantages that the whole device can be moved, the water drainage and the improvement of utilization rate of laboratories are facilitated, a special laboratory is not required to be built, the connecting relation of various components can be intuitively displayed, the teaching is facilitated, and the like.