In recent years, virtual desktop and virtual application is the important research topic for virtualization of cloud computing. Virtualization provides many benefits by using virtual machine software, including we can efficiently deploy and manage all of virtual system resources, and it offers the ability of high reliability, high elasticity and customization. In order to share the system and software resources, related basic knowledge show in our paper about the virtualization technology of desktop and application, and we proposed the virtual desktop and application services to offer an efficient and elastic service for cloud platform. A machine learning approach is also applied to manage resource allocation. It implements the VDaaS (Virtual Desktop as a Service) and VAaaS (Virtual Application as a Service) by developing the sharing technology for virtual desktop and virtual application with the cloud platform
