An electronic device is provided. The electronic device includes a first electronic component, a second electronic component, a holder, and an antenna assembly. The second electronic component is slidably coupled to the first electronic component. The holder is coupled to the second electronic component and inserted into the first electronic component. The antenna assembly includes a radio frequency (RF) module, an antenna radiator, and an RF cable. The RF module is disposed in the first electronic component. The antenna radiator is disposed in the second electronic component. An end of the RF cable is coupled to the antenna radiator and the holder, and another end of the RF cable is coupled to the radio frequency module. The RF cable is retracted and stretched when the holder is driven to slide by sliding the second electronic component. A control method of the electronic device is also provided.