Disclosed is a device for measuring the infiltration performance of concrete. The device is characterized in that the lower end of a metal pipe (7) is embedded in a hole (8-1); the output port of the hydraulic pressure tank (1) and the detecting port of the pressure meter (2) are connected to each other via the ports on the water pipe (5) and the metal pipe (7); the metal ring (6) is jointed out of the concrete sample (8); one end of the resistance detecting circuit (4) is connected on the metal pipe (7), and the other end of the resistance detecting circuit (4) is connected on the metal ring (6); the weight (3) is jointed on the upper end of the hydraulic pressure bar (1-1); the hydraulic pressure bar lower end of the hydraulic pressure tank is installed in the hydraulic pressure cavity.