A miniaturized dual-frequency reconfigurable antenna is proposed in this paper. The antenna frequency can be reconstructed by connecting two varactors with a 1/4 wavelength branch. The antenna is designed on a FR4 substrate with a relative permittivity 4.4. The overall size of the antenna is only 18.79 mm×15.98 mm×1 mm. The three-dimensional simulation tool is used to obtain two adjustable frequency ranges of 5.34-5.45 GHz and 7.65-7.95 GHz. The antenna is suitable for modern wireless communication applications.