Facing the challenge of the information battle, the informationization degree of the equipment support directly affects the operational readiness and the mission success. With the idea of combining the clouding computing technique with the Internet of Things(IoT), the support missions for the naval gun equipment are analyzed, and then the cloud support frame of the naval gun equipment is proposed, based on the military equipment LAN built by the IoT and the basic cloud computing frame. The quick and safe communication between the clouds is ensured by this new frame, in which each data center responding to the support missions is viewed as a private cloud, and the information is collected and transferred by the sensor network and the wide area communication network. The two implementation aspects, the support course and the resource, are discussed. Consequently, the informationization degree and the connectivity of the naval gun equipment support are enhanced. The real-time and visualized surveillance of the support course is realized, with the dynamic and highly efficient management of the support resource.