At present, solar water heaters solar utilization Diqing Wall China has been rapid development, and gradually formed a relatively complete industrial. But there are aspects of system security industry development and policy gap, policy-relevant lagging behind. China formulated the "1996-210 New Energy Renewable Energy Development Program" and other strategic planning, in 2006 passed the "Renewable Resources Act," published in 2007, "China's renewable energy and long-term development plan," but to make these accounting rate and the effective implementation of laws and regulations, the development must be further rental management system. First, the promotion of a wall-mounted solar water heaters, solar Diqing technology problems 1. inadequate policies and incentives. Under the current level of technology and policy environment, due to the high development and utilization of solar energy product costs, under the existing rules of competitive markets, the need for policy support and incentives, the current state of solar energy and other renewable resources to support the development of normal system is still incomplete. 2. Wall Diqing solar water heater market regulation and market protection mechanism is not perfect, although the state long-term renewable energy development plan has been announced, but not yet form a continuous stable market demand, the market does not establish a mandatory guarantee normal, lack of sustained development of solar market pull. 3. technological development capability and industrial system is weak. Domestic solar production technology and production capacity big gap with foreign advanced level, resulting in higher production costs of products, colleagues technical standards. Product testing and certification system is imperfect. The wall-mounted solar water heaters, solar Diqing building applications lack of talent, solar building design meteorological applications engineering, environmental, HVAC and electrical appliances, and many other professional result, you need to survey, design, construction, management and other aspects of mutual co-operation with the requires a lot of design, construction, operation and management and other aspects of professional and technical personnel.