A device was developed on the basis of the full investigation of biological culture devices in international space vehicles. According to the plants in different growth stages, the parameters of space culture devices could be adjusted automatically by PC software. The temperature, humidity,carbon dioxide and ethene in plant growth chamber were controlled by using semiconductor heating element. It provided adequate water and nutrients, appropriate light intensity and duration. The image information was acquired. It also had the function of gas exchange and condensate water recovery. System test showed that this method was feasible. The control precision could meet the requirements of plants. The fluctuation of parameters, such as temperature, humidity, ethylene and CO2 , was within the range of plant growth needs.