Private cloud computing service platform and management method thereof, and private cloud computing system

The present invention relates to a private cloud computing service platform and a management method thereof, and a private cloud computing system. The private cloud computing service platform comprises: an information monitoring module configured to monitor resource usage condition of a virtual machine in real time and provide basis for the utilization of the resource; a file management module configured to complete uploading, downloading and checking of a file and transmission and deletion operations between each virtual machine; a virtual machine management module configured to provide the virtual machine and a plurality of required operation system basic mirror images for users, dynamically deploy the virtual machine and the clone and on-line migration functions of the virtual machine according to a user request, and perform autonomous management of the virtual machine according to the user requirement, wherein the virtual machine has an autonomous load balance decision.