The invention discloses a molten salt heat absorber system for a secondary reflective tower type photo-thermal power station. A heat absorber is arranged on ground, and is provided with two loop systems which are symmetrically distributed along the east and west direction, each loop system comprises a heat absorber header, a heating surface pipe panel and a corresponding connecting pipeline, each heat absorber header comprises a No.1 inlet distribution head, a No.2 inlet distribution head and a middle mixing and redistribution header, the two inlet distribution headers are respectively hung on grooves of heat insulation walls at the east and west sides by hanging devices, the middle mixing and redistribution header is positioned between two loops, and is fixedly arranged on the ground by support, and the heating surface pipe panel is arranged among the inlet distribution headers and the mixing and redistribution header, and is provided with a light surface and a shady surface. The molten salt heat absorber system has the advantages that the ground layout is adopted; by adopting the design of adjusting the installation position of the heat absorber and optimizing the structure, the heat efficiency of the heat absorber is improved at the property aspect, and the investment of equipment is reduced and the power consumption of plants is decreased at the economy aspect.