A method for identifying a dual-mode wireless device, comprising: receiving a Bluetooth Low Energy, BLE, advertising packet from a slave device; extracting a Media Access Control, MAC, address that is carried in the BLE advertising packet from the slave device and that is of a master device that has established a classic Bluetooth connection with the slave device; and if the MAC address is a MAC address of a current master device, establishing a BLE connection with the slave device; or if the MAC address is not a MAC address of a current master device, ignoring the BLE advertising packet from the slave device; wherein after the receiving a BLE advertising packet from a slave device, the method further comprises: when the slave device has established a classic Bluetooth connection, establishing a BLE connection with the slave device; extracting the MAC address that is carried in the BLE advertising packet from the slave device and that is of the master device that has established the classic Bluetooth connection with the slave device, and determining whether the extracted MAC address is the same as a MAC address of the current master device that has established the BLE connection with the slave device; and if the extracted MAC address is the same as the MAC address of the current master device that has established the BLE connection with the slave device, storing the MAC address as the MAC address of the current master device; or if the extracted MAC address is different from the MAC address of the current master device that has established the BLE connection with the slave device, removing the BLE connection from the slave device. receiving a Bluetooth Low Energy, BLE, advertising packet from a slave device; extracting a Media Access Control, MAC, address that is carried in the BLE advertising packet from the slave device and that is of a master device that has established a classic Bluetooth connection with the slave device; and if the MAC address is a MAC address of a current master device, establishing a BLE connection with the slave device; or if the MAC address is not a MAC address of a current master device, ignoring the BLE advertising packet from the slave device; wherein after the receiving a BLE advertising packet from a slave device, the method further comprises: when the slave device has established a classic Bluetooth connection, establishing a BLE connection with the slave device; extracting the MAC address that is carried in the BLE advertising packet from the slave device and that is of the master device that has established the classic Bluetooth connection with the slave device, and determining whether the extracted MAC address is the same as a MAC address of the current master device that has established the BLE connection with the slave device; and if the extracted MAC address is the same as the MAC address of the current master device that has established the BLE connection with the slave device, storing the MAC address as the MAC address of the current master device; or if the extracted MAC address is different from the MAC address of the current master device that has established the BLE connection with the slave device, removing the BLE connection from the slave device. when the slave device has established a classic Bluetooth connection, establishing a BLE connection with the slave device; extracting the MAC address that is carried in the BLE advertising packet from the slave device and that is of the master device that has established the classic Bluetooth connection with the slave device, and determining whether the extracted MAC address is the same as a MAC address of the current master device that has established the BLE connection with the slave device; and if the extracted MAC address is the same as the MAC address of the current master device that has established the BLE connection with the slave device, storing the MAC address as the MAC address of the current master device; or if the extracted MAC address is different from the MAC address of the current master device that has established the BLE connection with the slave device, removing the BLE connection from the slave device.