Antenna device, wearable device and method for setting antenna device

The invention provides an antenna device, a wearable device and a method for setting the antenna device. The antenna device comprises a radiation portion which is arranged in a connection portion of the wearable device and is used for radiating and receiving an antenna signal. The antenna signal comprises a first antenna signal in a first frequency band and a second antenna signal in a second frequency band; a feed end arranged on the radiation portion and used for feeding the antenna signal to the radiation portion and feeding the antenna signal on the radiation portion to corresponding signal transceivers; a first matching unit used for enabling the radiation portion to be matched with a first signal transceiver so as to transmit the first antenna signal; and a second matching unit used for enabling the radiation portion to be matched with a second signal transceiver so as to transmit the second antenna signal. In the technical scheme of the embodiment of the invention, under the condition of increasing cost less, antenna transmission of wide frequency band can be realized in the wearable device.