A quality of service (QoS) resource allocation method and apparatus, where the method includes receiving service information from a terminal, sending a QoS resource request message that carries the service information to a policy and charging rules function (PCRF) corresponding to the terminal, where the QoS resource request message requesting the PCRF to allocate a QoS resource to a terminal service, and receiving a request response message from the PCRF indicating whether the QoS resource is successfully allocated to the terminal service. The terminal can recognize the service information of the terminal service, and a specific implementation of sending, to the PCRF, the service information of the terminal service recognized by the terminal is put forward such that accuracy of a policy formulated by the PCRF is improved.