The invention provides a multilevel dynamic home network service quality assurance method. The method is based on a 'three horizontal six longitudinal' service quality assurance architecture, 'three horizontal' comprises a data plane, a control plane and a management plane respectively, and 'six longitudinal' comprises six steps, namely service discovery, service subdivision, safety control, resource consultation, resource mapping and service execution, wherein the management plane also comprises a service oriented QoS feedback control mechanism module which is used for realizing end-to-end service quality dynamic feedback on single service flow as well as a policy which is generated by a global QoS policy dynamic generation technical module and is used for supporting a service discovery module, a demand analysis module, a security detection module, a service registration module and a service recording module of the management plane; and the service oriented QoS feedback control mechanism module is dependent on information provided by the service discovery module, the demand analysis module, the security detection module, the service registration module and the service recording module of the management plane.