Abstract: An agricultural information management platform based on cloud computing technology was constructed to improve level of agricultural information management and solve problems of unbalanced resource allocation and low sharing degree in agricultural resource management． Infrastructure layer builded a network agricultural resource data center through host server and virtual machine． Data layer used cloud computing technology to manage agricultural data of infrastructure layer and store it in database． Agricultural information management end of application service layer realized agricultural resource scheduling of database through cloud computing technology． Discrete Kalman filtering algorithm was used to update and process agricultural data in real time． Management layer comprehensively coordinated all stages of platform management through management of agricultural authority, quality, safety and other information, and could provide an access interface for users through user access layer． Test results showed that platform had good data collection and fusion effect, uniform and reasonable resource allocation, and had good load balance under different task quantities, which could realize better agricultural information management．