The utility model relates to an online intelligent water supply installation, including feed water inlet and delivery port, the characteristic is: the one end of pipe connection ball valve is passed through to the feed water inlet, the one end of filter is connected to the other end of ball valve, the one end of first solenoid valve is connected to the other end of filter, the one end of water pump and the one end of second solenoid valve are connected respectively to the other end of first solenoid valve, the other end run -on mouth of a river of second solenoid valve, the one end of the other end connection pressure jar of water pump, the entrance point of calorifier is connected respectively to the other end of overhead tank, the first entrance point of the outlet of preventing frostbite and mixing valve, the second entrance point of mixing valve and discharge valve's one end are connected respectively to the play water end (W. E. ) of calorifier, the one end of third solenoid valve is connected to the exit end of mixing valve, the delivery port is connected to the other end of third solenoid valve, the other end run -on mouth of a river of the one end of relief valve, relief valve is connected to discharge valve's the other end. The utility model discloses a control will go out water pressure control to certain scope, reach the certain hydraulic effect of supply.