A method for accessing a wireless local area network, comprising: obtaining (S201, S301), by an access point, an uplink access collision value, wherein the uplink access collision is due to that multiple stations associated with the access point simultaneously send data to the access point; and broadcasting (S202, S305), by the access point, a first clear to send signal to all the stations associated with the access point when it is determined that the uplink access collision value exceeds a preset threshold, wherein the first clear to send signal comprises a media access control address of a first station associated with the access point, wherein the first station is instructed to send data to the access point; characterized in that the method further comprises: monitoring, within a preset waiting time, whether the access point receives the data sent by the first station; obtaining (S307, S301) again an uplink access collision value if the access point receives within the preset waiting time the data sent by the first station; and broadcasting (S308, 305) a second clear to send signal to all the stations associated with the access point if the access point does not receive within the preset waiting time the data sent by the first station, wherein the second clear to send signal comprises a media access control address of a second station associated with the access point, wherein the second station is instructed to send data to to the access point. obtaining (S201, S301), by an access point, an uplink access collision value, wherein the uplink access collision is due to that multiple stations associated with the access point simultaneously send data to the access point; and broadcasting (S202, S305), by the access point, a first clear to send signal to all the stations associated with the access point when it is determined that the uplink access collision value exceeds a preset threshold, wherein the first clear to send signal comprises a media access control address of a first station associated with the access point, wherein the first station is instructed to send data to the access point; characterized in that the method further comprises: monitoring, within a preset waiting time, whether the access point receives the data sent by the first station; obtaining (S307, S301) again an uplink access collision value if the access point receives within the preset waiting time the data sent by the first station; and broadcasting (S308, 305) a second clear to send signal to all the stations associated with the access point if the access point does not receive within the preset waiting time the data sent by the first station, wherein the second clear to send signal comprises a media access control address of a second station associated with the access point, wherein the second station is instructed to send data to to the access point. monitoring, within a preset waiting time, whether the access point receives the data sent by the first station; obtaining (S307, S301) again an uplink access collision value if the access point receives within the preset waiting time the data sent by the first station; and broadcasting (S308, 305) a second clear to send signal to all the stations associated with the access point if the access point does not receive within the preset waiting time the data sent by the first station, wherein the second clear to send signal comprises a media access control address of a second station associated with the access point, wherein the second station is instructed to send data to to the access point.