Aiming to solve the problems of unsuitable storage and management and poor storage effect, a set of potato storage environment control system was designed according to the technological conditions of potato storage. The system used temperature sensor, humidity sensor and CO2 concentration sensor to monitor the environmental parameters in real time. By adjusting the inlet air window and outlet air window, fan, compressors and humidification device, the environment temperature parameters in callus period, the temperature, humidity and CO2 concentration in storage period were regulated. The purpose was to make the storage environment attain the requirements of potato storage. In the temperature accuracy test of each measuring point, the temperature error of each measuring point was within -0.3~0.3℃, and the temperature range of each measuring point was 0.6℃, the monitoring temperature was basically the same as the real temperature on the whole. In the experiment of regulation effect, the temperature of callus period and storage period was within the allowable range of the system set value, while the temperature outside the storage had little effect on the temperature inside the storage, and the humidity and CO2 concentration could be controlled within a reasonable range. Therefore, it was very important to improve the storage environment of potato, accelerate the postharvest callus, prolong the storage period and ensure the quality of potato.