A flow-based bearer management method, the method being applied to an access network, AN, and comprising: acquiring service class information; and managing a radio bearer according to the service class information; or managing a radio bearer according to the service class information and packet description information in a received data packet, wherein the packet description information comprises service class identifier information, notifying a user equipment, UE, of a mapping relationship between the service class information and the radio bearer; wherein the service class information comprises service class identifier information and at least one of the following information: a priority, a data packet delay, a data packet loss rate and a maximum data rate; wherein the managing the radio bearer comprises establishing the radio bearer, and further comprises executing at least one of the following management operations: modifying the radio bearer and deleting the radio bearer; wherein the mapping relationship between the service class information and the radio bearer is represented by a mapping relationship between the service class identifier information and radio bearer identification information, the service class identifier information is used for identifying the service class information, and the radio bearer identification information is used for identifying the radio bearer; the method further comprising: disabling the radio bearer after being established, enabling the radio bearer in response to the AN receiving a downlink data packet from a core network, CN, or enabling the radio bearer in response to the AN receiving a data transmission request from the UE. acquiring service class information; and managing a radio bearer according to the service class information; or managing a radio bearer according to the service class information and packet description information in a received data packet, wherein the packet description information comprises service class identifier information, notifying a user equipment, UE, of a mapping relationship between the service class information and the radio bearer; wherein the service class information comprises service class identifier information and at least one of the following information: a priority, a data packet delay, a data packet loss rate and a maximum data rate; wherein the managing the radio bearer comprises establishing the radio bearer, and further comprises executing at least one of the following management operations: modifying the radio bearer and deleting the radio bearer; wherein the mapping relationship between the service class information and the radio bearer is represented by a mapping relationship between the service class identifier information and radio bearer identification information, the service class identifier information is used for identifying the service class information, and the radio bearer identification information is used for identifying the radio bearer; the method further comprising: disabling the radio bearer after being established, enabling the radio bearer in response to the AN receiving a downlink data packet from a core network, CN, or enabling the radio bearer in response to the AN receiving a data transmission request from the UE.