Abstract: Advanced and automatic monitoring and controlling technology could be adopted in industrialized agricultural production, and be vigorously developed in China. At present, very few places were equipped with environmentally monitoring and controlling system. Considering the demands of greenhouse production at present in China, a solar greenhouse environmental monitoring and controlling system was developed to fulfill the task of monitoring and controlling the key environmental factors such as temperature, humidity and lightness that have a strong influence on the crop growth in a solar greenhouse.