The embodiments of the invention provide a virtual optical network multilayer resource convergence method and system. An application controller and a network controller are used for carrying out combined management and scheduling on global network resources, and global optimization of multilayer resource combined interaction is realized. The virtual optical network multilayer resource convergence system comprises a multilayer resource convergence unit, a virtual resource management unit, a virtual path calculating unit, a configuration management unit, a resource database and a business management unit. The virtual optical network multilayer resource convergence method comprises the steps of control state activation, application resource judgment, application resource convergence, network path calculation, path time delay calculation, flow constraint judgment, single-flow path network resource judgment, multi-flow path calculation, multi-flow path network resource calculation, multi-flow path network resource judgment and the like. The method and system are adopted to respond a virtual network request, the path blocking probability is lowered, and the network resources and the application resources are flexibly converged.