本文章以玻璃、塑料薄膜、分子膜等不同盖层的太阳池的对比实验为基础,对实用性太阳池的盖层选择提出了建议,认为在北京地区建池可能不需要加任何盖层,在水份蒸发较快的地方使用分子膜层;对中、小型池提议使用可移动式盖层最为适宜。同时由加有反射板的太阳池的对比实验,知此种太阳池不仅能增加池内太阳能的入射量,而且使太阳池在高纬度地区的应用成为可能。 Based on the comparative experiments of solar cells with different cap layers, such as glass, plastic film and molecular film, this article puts forward some suggestions on the choice of cap for practical solar cells. It is suggested that there is no need to add any cap layer in the pool in Beijing, Moisture in the evaporation of the rapid use of molecular film; for small and medium-sized pool is recommended to use removable cover the most appropriate. At the same time by the comparison of the solar pool with reflection plate experiments, we know that this solar pool can not only increase the amount of solar pool incident, but also make the solar pool in high latitudes possible.