When it comes to the implementation of cloud service environment, it is always difficult to plan how to build the Cloud service environment into our company, IDC and school. Although many companies move away from their dependency of vendor to build the environment with the use of customizing and economical Open Source Project, it seems that they are having difficulties in deciding which open source to use, on how to configure it and how to utilize it, which requires times and costs. Thus, we’d like to share our know-how of building Open Cloud using WiseCLOUD CMP with people who look forward to introduction of Cloud and building the Open Cloud. After discussing what Open Cloud is and introducing Open Source Cloud Project that is essential to the construction, we will share with you a representative example of Open Cloud configuration and how to utilize WiseCLOUD CMP for Open Cloud.