The present invention relates to a solar combined decorative wall body heat-collecting system, including: several groups of solar water-heaters are set on the roof of soalr orientation surface of building and/or its outer wall, the interior of solar water-heater is equipped with heat exchange tube, water outlet tube of said heat exchange tube is communicated with hot water storage box placed in the room, said hot water storage box is communicated with a water distributor. Said water distributor has several water outlet tubes communicated with heating tubes which are preset in vertical wall and/or floor slab. Said heating tube can be circuitously laid along the vertical wall and floow slab, and its tail end is connected with water-return box whose outlet tube ise quiopped with water pump, and the outlet of said water pump is communicated with return tube of heat exchange tube in the water jacket of heat-collector. |