The utility model provides a suppress the pump that quick pressure testing device of valve and pressure testing system thereof, the quick pressure testing device of valve, is connected four -way connection between two adjacent trunk lines, is connected at the tapered pipeline of four -way connection port, is connected at the connecting tube of tapered pipeline port and through pressure pipe and trunk line intercommunication a set of trunk line that sets up including the interval. Be connected with the pressure inspection device on the trunk line. Be connected with the ball valve on the pressure pipe. It is partly the port of connecting tube is connected with flange, another part the port of connecting tube is connected with the shutoff board. The utility model provides a work of the conventional valves method of inspection is loaded down with trivial details, the problem of inefficiency.