IT infrastructure has multiple master servers wherein its external and internal data fail to be controlled at the same time, resulting in low management efficiency of IT infrastructure cloudy data. Also, the platform information access security management becomes extremely difficult. Therefore, a multicloud management platform for IT infrastructure based on hybrid cloud is designed. The overall architecture and cloud structure design of the cloud management platform is implemented using two master servers, control platform internal and external IT infrastructure cloud data at the same time. The framework also ensures desensitized access to IT infrastructure resources. Also, a cloud data load balancing adaptation process and IT infrastructure cloud management process are designed. The fuzzy information feature extraction method is used to extract the association information of IT infrastructure cloud management and reconstruction of the association rules of frequent item sets of IT infrastructure information. The experimental results show that the cloud link utilization is about 90%, the cloud management delay is lower than 1.1 ms, and the cloud management error is less than 2% in 400 iterations. Also, the accuracy of IT infrastructure packet forwarding is higher than that of the state-of-the art frameworks.