"Government procurement" as a tool to improve industry upgrading and transforming is a prominent strategy of the government to promote emerging industry. In an effort to expedite Cloud utilization progress in public sectors, foreign adavanced contries recently have tried out new method to conduct Cloud services procurement, and they would like to let entire public sectors follow the new rules to acquire Cloud services. For example, U.S. General Service Administration utilize precompeted blanket purchase agreements (BPAs) that help others agencies access to Email as a Service (EaaS) and Infrastructure as a Service (IaaS), and achieve efficiencies and savings. UK Government have initiated G-Cloud Programme and implemented "framework agreements" to request for Cloud services joining on CloudStore plateform which agencies can select Cloud services from. Besides, information security assurance mechanism accompanied is a worthy point to observe. This article introduces above experiences of Cloud procurement methods and submits suggestion for future reference.