The invention discloses a heat pipe type wall-mounted double-effect flat plate heat collector which comprises a box. The front side of the box is provided with a glass cover plate. The box is internally provided with a heat absorption plate and a water collection and heating tank which is provided with a water inlet and a water outlet. The rear side of the box is provided with an air inlet and an air outlet. The box is internally provided with an air flow channel attached to the rear side face of the heat absorption plate and a plurality of heat pipes. The evaporation sections of the heat pipes are embedded into the air flow channel, and the condensation sections of the heat pipes are embedded into the water collection and heating tank. A heat preservation layer is formed in the box by filling a heat preservation material. The heat pipe type wall-mounted double-effect flat plate heat collector can achieve the double-effect functions of water collection and heating and air collection and heating, and the solar heat utilization rate is greatly increased; by using the heat pipes, the problem that the temperature is too low in winter, and water freezes to cause copper pipe burst can be solved, maintenance cost is greatly reduced, and the service life is prolonged; and the condensation sections of the heat pipes directly heat the water, and heat transmission efficiency is greatly improved.