The invention discloses a high-efficiency solar heat absorbing material, which is a large-area heat absorbing material formed by mixing graphene, graphite, an auxiliary material and a catalyst, and then performing extrusion, blow molding and hot melting. The auxiliary material is a mixture of acrylonitrile-butadiene-styrene, ethylene-vinyl acetate copolymer, polyvinyl chloride, polypropylene, polyphenylene sulfide, silicon carbide, boron nitride, iron black, iron blue, iron red, chromium oxide, titanium nitride, CuFeMnO4, alumina, magnesia, zinc oxide, beryllia and silver powder. The catalystincludes a titanate coupling agent, a compatibilizer, and silicone powder. The compatibilizer refers to a maleic anhydride grafted compatibilizer such as maleic anhydride grafted PE and maleic anhydride grafted PP. The titanate coupling agent is preferably NDZ-201, and is diluted with white oil in equal proportions. The solar heat absorbing material can be in direct contact with water, has super absorption, less heat loss, fast heating, and high thermal efficiency, and can achieve mass production.