As intelligent construction for grain depot can improve the level of warehouse management, save the cost of labor, make scientific business decision, and guarantee the safety of grain storage, it has been increasingly concerned in various fields such as grain purchasing and storage enterprises. The construction and application of intelligent grain depot was summarized. Its application status in grain monitoring, intelligent ventilation, intelligent air conditioning, intelligent entering and exiting warehouse, video monitoring, warehouse information management and other aspects were introduced. The prospect of the construction of intelligent grain depot was also presented at the end of the paper.