Water quality of Huangpu River is the carrier of water source heat pump technology, and the water quality of Huangpu River is evaluated comprehensively. This paper also analyses the applicability of the technology in Shanghai. In this paper, Water source heat pump system and ice storage technology are combined. This technology compared with the traditional cooling tower way can save more energy and is more environmentally friendly. Engineering uses a comprehensive energy efficiency evaluation method and calculates refrigeration system cop and heating system cop. Calculation makes the conclusion more convincing.