Abstract: An wireless roaming method and system are provided. The method is applied to an AP and comprises: acquiring terminal information of each wireless terminal of wireless terminals currently accessing the AP; determining a roaming terminal currently in an active state from the wireless terminals according to the RSSI value and the idle duration of each wireless terminal; determining, for each roaming terminal, wireless roaming protocols supported by the roaming terminal; wherein, the wireless roaming protocols include an 802.11k-based roaming protocol, an 802.11r-based roaming protocol, and an 802.11v-based roaming protocol; performing a roaming operation on the roaming terminal according to the wireless roaming protocols supported by the roaming terminal.