The invention relates to a hydro-thermal coupling model experiment device. A main body part includes a box body and a box cover capable of being opened and closed. A filter plate assembly is arrangedin the box body in a drawable mode, and the filter plate assembly comprises two or more filter plates. The internal part of the box body is divided into three or more areas, which are successively arranged, by the two or more filter plates. Two or more of three or more areas are first areas which are internally provided with water supply pipe groups. The number of heating water supply units is thesame as the number of the first areas, and the heating water supply units are correspondingly connected with water inlets and water outlets of the positions where the first areas are located. Each heating water supply unit includes a water tank and a water pump. According to the hydro-thermal coupling model experiment device, the seepage direction and the seepage speed of a water body in an aquifer can be controlled by connecting with different water inlets and different water outlets so that different flow states can be simulated. A relatively closed water circle is formed in the first areas, different pressures and temperatures of the water body can be set and basically kept stable, and soil bodies in different layers are convenient to settle through the filter plate assembly.