Research on Virtualization in Edge Computing focuses on leveraging virtual machines (VMs), containers, and lightweight virtualization technologies to enhance resource utilization, flexibility, and isolation in distributed edge environments. This area addresses challenges such as limited computational and memory resources, heterogeneous hardware, dynamic workloads, and the need for low-latency and reliable service deployment. Key research directions include container-based and microservices-oriented virtualization, lightweight hypervisors, and VM/container orchestration frameworks for edge nodes. Other emerging topics involve virtualized network functions (VNFs) for edge services, edge–cloud collaborative virtualization, live migration and fault-tolerant VM/container management, and energy-efficient virtualization strategies. Additionally, research on security and isolation in virtualized edge environments, resource-aware virtual machine placement, and hybrid virtualization architectures represents significant avenues for advancing scalable, flexible, and efficient edge computing infrastructures.