Abstract: With the continuous progress of the concept of environmental protection construction in society, people are paying more and more attention to the development and utilization of new energy. At present, it is urgent to study a type of central air-conditioning system that is not only environmentally friendly but also economical and energy-saving.As a new type of energy saving and environmental protection technology, the promotion of solar and air dual heat source heat pump hot water system is of high value. In view of this, the article discusses it in detail in order to provide assistance for the development of the industry.