A control method and an apparatus for network admission, which can control network admission of a wireless termination point (WTP) in a condition that a live network is not upgraded. In the method, an access controller (AC) that has a network admission control function receives a join request packet from a WTP and establishes a Control and Provisioning of Wireless Access Points (CAPWAP) connection with the WTP. If the CAPWAP connection between the AC and the WTP is successfully established, the AC enables permission of the WTP. In another control method for network admission disclosed in the present application, an AC receives a join request packet from a WTP and establishes a CAPWAP connection with the WTP. A network admission end enables permission of the WTP according to a result from the AC that the connection between the AC and the WTP is successfully established.