A network management method, comprising: broadcasting a message carrying access information; providing an access path to a wireless access device for a terminal which receives the message and sends an access request; acquiring a type of the terminal which accesses the wireless access device; and controlling connection between the terminal and a network according to the type of the terminal, comprising: in a case that the terminal is a passive paging terminal, after the passive paging terminal finishes transmitting network communication data, disconnecting a link between the passive paging terminal and the wireless access device in the connection between the passive paging terminal and the network, and maintaining a link between the wireless access device and the network in the connection between the passive paging terminal and the network; in a case that the terminal is a permanent online terminal, maintaining connection between the permanent online terminal and the network, and transmitting network communication data to the permanent online terminal; and in a case that the terminal is an active reporting terminal, disconnecting connection between the active reporting terminal and the network after finishing transmitting network communication data to the active reporting terminal; and receiving an access request sent by the passive paging terminal and establishing connection between the passive paging terminal and the network in response to the passive paging terminal meeting an access condition, wherein the access condition comprises at least one of the following conditions: when the passive paging terminal is called by the network; when a fixed access time arrives; and when an event that triggers access happens at the passive paging terminal. broadcasting a message carrying access information; providing an access path to a wireless access device for a terminal which receives the message and sends an access request; acquiring a type of the terminal which accesses the wireless access device; and controlling connection between the terminal and a network according to the type of the terminal, comprising: in a case that the terminal is a passive paging terminal, after the passive paging terminal finishes transmitting network communication data, disconnecting a link between the passive paging terminal and the wireless access device in the connection between the passive paging terminal and the network, and maintaining a link between the wireless access device and the network in the connection between the passive paging terminal and the network; in a case that the terminal is a permanent online terminal, maintaining connection between the permanent online terminal and the network, and transmitting network communication data to the permanent online terminal; and in a case that the terminal is an active reporting terminal, disconnecting connection between the active reporting terminal and the network after finishing transmitting network communication data to the active reporting terminal; and receiving an access request sent by the passive paging terminal and establishing connection between the passive paging terminal and the network in response to the passive paging terminal meeting an access condition, in a case that the terminal is a passive paging terminal, after the passive paging terminal finishes transmitting network communication data, disconnecting a link between the passive paging terminal and the wireless access device in the connection between the passive paging terminal and the network, and maintaining a link between the wireless access device and the network in the connection between the passive paging terminal and the network; in a case that the terminal is a permanent online terminal, maintaining connection between the permanent online terminal and the network, and transmitting network communication data to the permanent online terminal; and in a case that the terminal is an active reporting terminal, disconnecting connection between the active reporting terminal and the network after finishing transmitting network communication data to the active reporting terminal; and receiving an access request sent by the passive paging terminal and establishing connection between the passive paging terminal and the network in response to the passive paging terminal meeting an access condition, wherein the access condition comprises at least one of the following conditions: when the passive paging terminal is called by the network; when a fixed access time arrives; and when an event that triggers access happens at the passive paging terminal. when the passive paging terminal is called by the network; when a fixed access time arrives; and when an event that triggers access happens at the passive paging terminal.