The invention provides a reconfigurable antenna control method and device and mobile electronic equipment. The method comprises the steps of detecting a signal intensity value of an antenna terminal; judging whether the signal intensity value is higher than a signal intensity threshold value or not; and adjusting a capacitance value until the signal intensity value is higher than the signal intensity threshold value when the signal intensity value is lower than the signal intensity threshold value. With the reconfigurable antenna control method and device and the mobile electronic equipment, provided by the embodiment of the invention, the resonant frequency of an antenna can be automatically adjusted according to a current working effective frequency band, frequency reconfiguration of the antenna terminal is achieved, the effective bandwidth of the antenna terminal is substantially improved, the receiving capability of the antenna terminal is improved, and the communication capability of the mobile electronic equipment is improved; and meanwhile, the antenna structure is simplified, the antenna size is reduced, and the miniature design demand of the mobile electronic equipment can be satisfied.