A resource access method applied to a computer and the computer, where the resource access method is performed by a resource controller which is used to implement resource virtualization. The method includes receiving a resource access request of a virtual machine (VM) for a resource, where the resource access request carries a resource virtual address and an identifier of the VM, translating the resource virtual address into a resource physical address using the identifier of the VM and based on a preset resource information mapping relationship, updating the resource virtual address in the resource access request using the resource physical address, and sending an updated resource access request to a to-be-accessed resource corresponding to the resource physical address in order to access the to-be-accessed resource.