A method for managing an application resource, comprising: sending, by an Application Entity, AE, or a Common Service Entity, CSE, a node resource creation request to a registration CSE of the AE or CSE to request a resource for an application node where the AE is located or an intermediate node where the CSE is located, wherein the node resource creation request comprises an AE identity of the AE or a CSE identity of the CSE, a node identity and a type of the resource to be created; and creating, by the registration CSE, a node resource for the application node or the intermediate node, characterized in that the method further comprises: establishing, by the registration CSE, an association relationship between an AE resource which has been created for the AE and the currently created node resource, or establishing, by the registration CSE, an association relationship between a CSE resource which has been created for the CSE and the currently created node resource, wherein an attribute of the AE resource comprises the AE identity and an attribute of the CSE resource comprises the CSE identity; wherein establishing the association relationship between the AE resource and the currently created node resource (S202, S207) comprises: setting a value of a "node connection" attribute of the AE resource to be the node identity or an address of the currently created node resource; and establishing the association relationship between the CSE resource and the currently created node resource (S202, S207) comprises: setting a value of a "node connection" attribute of the CSE resource to be the node identity or an address of the currently created node resource. sending, by an Application Entity, AE, or a Common Service Entity, CSE, a node resource creation request to a registration CSE of the AE or CSE to request a resource for an application node where the AE is located or an intermediate node where the CSE is located, wherein the node resource creation request comprises an AE identity of the AE or a CSE identity of the CSE, a node identity and a type of the resource to be created; and creating, by the registration CSE, a node resource for the application node or the intermediate node, characterized in that the method further comprises: establishing, by the registration CSE, an association relationship between an AE resource which has been created for the AE and the currently created node resource, or establishing, by the registration CSE, an association relationship between a CSE resource which has been created for the CSE and the currently created node resource, wherein an attribute of the AE resource comprises the AE identity and an attribute of the CSE resource comprises the CSE identity; wherein establishing the association relationship between the AE resource and the currently created node resource (S202, S207) comprises: setting a value of a "node connection" attribute of the AE resource to be the node identity or an address of the currently created node resource; and establishing the association relationship between the CSE resource and the currently created node resource (S202, S207) comprises: setting a value of a "node connection" attribute of the CSE resource to be the node identity or an address of the currently created node resource.