[Problem]Disclosed is a shunt valve for treatment of hydrocephalus such that the flow rate of cerebrospinal fluid drained from the brain ventricles can be freely regulated without drastically changing the intraventricular pressure when the pressure thereof becomes abnormal after a transplant.[Means to Solve the Problem]A shunt valve for treatment of hydrocephalus which regulates the drainage amount of cerebrospinal fluid from the ventricles, and comprises a cured plastic substrate for stabilizing in a prescribed position, an inflow connector formed in a cylindrical shape to which a rear end of a ventricular catheter is connected, a first valve pressure variable device which regulates an increase and decrease in the flow rate of the cerebrospinal fluid with a first on-off valve according to changes in the intraventricular pressure and is capable of changing the opening and closing pressure into a plurality of levels, a second valve pressure variable device which regulates the increase and decrease of the flow rate of the cerebrospinal fluid with a second on-off valve according to changes in the fluid pressure of the cerebrospinal fluid drained from an outflow channel of the first valve pressure variable device and is capable of changing the opening and closing pressure into a plurality of levels, and an outflow connector formed in a cylindrical shape to which a rear end of a peritoneal catheter is connected.