A network access permission management method includes that a configuration device may generate a network access permission update instruction for a target device. A station device may update network access permission of the target device when receiving the network access permission update instruction and when verification of signature information of the configuration device succeeds. When the target device sends a coupling request message to the station device subsequently, the station device may determine, according to updated network access permission, whether to accept or reject a coupling request of the target device. In this way, a user may modify or revoke, based on a requirement, network access permission of any device in a WI-FI network. If a device is lost, network access permission of the device may be revoked in this manner, and the network access permission of the device may also be restored when the device is found back.