The invention discloses an improved wireless remote controller for an intelligent water heater, comprising a body of the wireless remote controller, wherein a sucking disc is fixed on the rear end face of the body, an insertion hole is formed in the upper end face of the body, an infrared emission tube is fixed at the bottom of the insertion hole, a rotary sleeve is inserted into the insertion hole, a cap is screwed at the upper end of the rotary sleeve, a reflective lens is fixed at the bottom of the cap, a notch is formed at the upper part of the rotary sleeve, a supporting lug is formed onthe side wall of the rotary sleeve, a shielding plate is hinged on the supporting lug, a counterweight piece is arranged at the lower end of the shielding plate, an annular arc-shaped protrusion is formed on the outer wall of the rotary sleeve, an annular arc groove is formed on the side wall of the socket, the arc-shaped protrusion is inserted into the arc groove, an annular iron layer is arranged on the arc-shaped protrusion, one end of a limiting rod is attracted on the iron layer, the other end of the limiting rod penetrates out of the body and is provided with a baffle plate, and a compression spring sleeves the limiting rod. The improved wireless remote controller can be fixed on the wall, and is convenient for realizing wireless control on the water heater.