A mobile communication device and a method for transceiving data and voice thereof are proposed. The mobile communication device includes a receiver, a first antenna module, and a second antenna module. The receiver is used to output voice. The first antenna module is disposed in the mobile communication device at a first side close to the receiver, and is used to transceive data of a first wireless communication system or a second wireless communication system. The second antenna module is disposed at a second side opposite to the first side, and is used to transceive voice of the first wireless communication system. A first distance between the first antenna module and the receiver is less than a second distance between the second antenna module and the receiver.