Antenna device of flip phone

The invention discloses an antenna device of a flip phone. The flip phone is provided with an upper plate and a lower plate, the lower plate is provided with a radio frequency module, and the upper plate and the lower plate are connected by a rotary shaft. The antenna device comprises a connecting piece and an antenna body, wherein the connecting piece is used for connecting the radio frequency module with the rotary shaft, the antenna body is arranged on the edge of the upper plate, one end of the antenna body is connected with the rotary shaft, the connecting piece, the rotary shaft and the antenna body are made of metal. In the invention, the antenna body is arranged on the inner side edge of the upper plate of the flip phone, which reduces the part stacking of the lower plate of the flip phone, and also leaves enough design space for the antenna body in order to perfectly fine adjust a resonance point of the antenna to the expected frequency point by the match design between the length of the antenna body