A wireless local area network WLAN access method performed by a terminal, comprising: sending a request for querying an available wireless access point to a server (40,60), to query information about the available wireless access point; receiving wireless access point information returned by the server (40,60); sending a connection permission application request to the server (40,60), wherein the connection permission application request is used to request the server (40,60) to determine whether a terminal (30,50) has a connection permission; in a case of having the connection permission, receiving a permission allocation result sent by the server (40,60); and determining a specific wireless access point from the received wireless access point information according to the received permission allocation result; and acquiring authentication information of the specific wireless access point from the server (40,60), wherein the authentication information is used to connect the terminal (30,50) to the specific wireless access point corresponding to the authentication information; and wherein after the terminal (30,50) is connected to the specific wireless access point, sending permission usage information to the server (40,60), wherein the permission usage information comprises: a terminal identifier and consumed permission information, or a user identifier and consumed permission information; receiving unused permission information sent by the server (40,60), wherein the unused permission information is obtained by the server (40,60) by performing processing according to a permission allocated to the terminal (30,50) and the permission usage information; and acquiring the unused permission information sent by the server (40,60), and when the unused permission information is that the permission corresponding to the terminal (30,50) is already exhausted, disconnecting the terminal (30,50) from the specific wireless access point. sending a request for querying an available wireless access point to a server (40,60), to query information about the available wireless access point; receiving wireless access point information returned by the server (40,60); sending a connection permission application request to the server (40,60), wherein the connection permission application request is used to request the server (40,60) to determine whether a terminal (30,50) has a connection permission; in a case of having the connection permission, receiving a permission allocation result sent by the server (40,60); and determining a specific wireless access point from the received wireless access point information according to the received permission allocation result; and acquiring authentication information of the specific wireless access point from the server (40,60), wherein the authentication information is used to connect the terminal (30,50) to the specific wireless access point corresponding to the authentication information; and wherein after the terminal (30,50) is connected to the specific wireless access point, sending permission usage information to the server (40,60), wherein the permission usage information comprises: a terminal identifier and consumed permission information, or a user identifier and consumed permission information; receiving unused permission information sent by the server (40,60), wherein the unused permission information is obtained by the server (40,60) by performing processing according to a permission allocated to the terminal (30,50) and the permission usage information; and acquiring the unused permission information sent by the server (40,60), and when the unused permission information is that the permission corresponding to the terminal (30,50) is already exhausted, disconnecting the terminal (30,50) from the specific wireless access point.