Virtualization of computing resources has become a mainstream technology in the computer world. This paper takes the performance optimization of resource virtualization platform on domestic operating system as the research object, deeply analyses the hardware support technology of virtualization, and the corresponding software principle and mechanism. From the point of performance research and improvement of resource virtualization, the Computer Domain (CD) based on virtualization technology is proposed. Based on the software driving principle and operating mechanism of the Virtual Manage Platform (VMP) kernel module for computational area analysis, three optimization directions are proposed: resource virtualization scheduling, I/O optimization and VM immersion optimization. The computing domain based on resource virtualization unifies the consistency of resource scheduling and improves the efficiency of resource scheduling. The experimental results show that the dynamic resource scheduling method based on computing domain can achieve significant performance improvement.