Solar drying can effectively solve the above problem. It can effectively save energy and protect environment. Solar drying refers to the technology of drying product by the use of solar energy, with the advantage of natural drying, but also remedying the defects of natural drying such as long period, easy pollution and deterioration. The temperature of the drying for agricultural and sideline products is generally in the scope of 50-60 and belongs to lower temperature, which is just in the middle-and and low-temperature area of solar energy. So, solar drying is very appropriate for the drying of agricultural and sideline products. In recent decades, with the improvement of solar collection technology,