A mobile communication terminal comprises an acoustic-electro conversion unit configured to convert sound into electric energy, which includes a conversion device for converting vibration into electric energy; and an energy storage unit electrically connected to the conversion device and configured to store electric energy generated by the conversion device. The mobile communication terminal can solve the problem that the mobile communication terminal has large power consumption and short continuous service time, and can make full use of energy, has a long continuous service time and is convenient to use.