Disclosed is an electric toothbrush including a toothbrush plate having a cleaning brush installed thereon a toothbrush head having a storage within which the toothbrush plate is stored a toothbrush body that is connected to the toothbrush head and has a storage space formed therein a flat type vibration motor that is disposed between the toothbrush plate and the toothbrush head and a power supply unit that includes a power supply that is disposed in the storage space of the toothbrush body and supplies the vibration motor with power, a power supply switch connected to the power supply and a wire that is electrically connected to the vibration motor and the power supply switch and supplies the vibration motor with power.