Intercooler cooling system pipeline testing fixture

The utility model discloses an intercooler cooling system pipeline testing fixture, which comprises a tooling table and is characterized in that a first support block and a second support block are arranged on the tooling table, a first slot is arranged on the first support block, a side through hole is arranged on one side wall of the first slot, a second slot is arranged on the second support block, and a side through hole is arranged on the other side wall of the first slot. A first air cylinder, a second air cylinder and a third air cylinder are arranged on the tool table, the ends of piston rods of the first air cylinder, the second air cylinder and the third air cylinder are each provided with a plugging head used for plugging an inflation port in a pipeline, end grooves are formed in the end faces of the plugging heads, and connecting holes communicated with the end grooves are formed in the side walls of the piston rods. A connector connected with an inflator pump is connected to the connecting hole,