An electronic device, comprising: a main body (110, 210) having a battery mounting part (120, 220) which is configured to hold a battery and has a space configured to allow movement of the battery; a battery (160, 260) mounted on the battery mounting part; a battery cover (150, 250); and a battery locking apparatus configured to unlock the battery cover (150, 250) and the battery (160, 260), comprising: an elastic connection terminal for electronically connecting the battery to the electronic device when the battery is mounted to the battery mounting part (120, 220); a push button (140, 240) configured to be pressed towards the main body (110,210); a locking unit (131, 231), provided between the battery cover (150, 250) and the main body (110, 210), for locking the battery cover (150, 250) to the main body (110, 210), wherein the locking unit includes a first stopping member (153, 253) formed on the battery cover (150, 250) and a first hook member (143, 243) formed on the push button (140, 240) configured to catch with the first stopping member (153, 253) and to move away from the first stopping member (153, 253) of the battery cover (150, 250), when the push button (140, 240) is pressed towards the main body (110, 210); and an unlocking unit, provided between the locking unit and the battery (160, 260), for providing a pushing force against the battery (160, 260) to unlock it from the main body (110, 210) when the push button (140, 240) is pressed towards the main body (110, 210), wherein the unlocking unit comprises a first stopping jaw (167, 267) formed on the battery (160, 260); a second stopping jaw (181, 281) configured to engage with the first stopping jaw (167, 267) for locking the battery to the battery mounting part; and a rod (170, 270) configured to push the battery (160, 260) in a direction to disengage the first stopping jaw (167, 267) from the second stopping jaw (181, 281), when the push button (140, 240) is pressed. a main body (110, 210) having a battery mounting part (120, 220) which is configured to hold a battery and has a space configured to allow movement of the battery; a battery (160, 260) mounted on the battery mounting part; a battery cover (150, 250); and a battery locking apparatus configured to unlock the battery cover (150, 250) and the battery (160, 260), comprising: an elastic connection terminal for electronically connecting the battery to the electronic device when the battery is mounted to the battery mounting part (120, 220); a push button (140, 240) configured to be pressed towards the main body (110,210); a locking unit (131, 231), provided between the battery cover (150, 250) and the main body (110, 210), for locking the battery cover (150, 250) to the main body (110, 210), wherein the locking unit includes a first stopping member (153, 253) formed on the battery cover (150, 250) and a first hook member (143, 243) formed on the push button (140, 240) configured to catch with the first stopping member (153, 253) and to move away from the first stopping member (153, 253) of the battery cover (150, 250), when the push button (140, 240) is pressed towards the main body (110, 210); and an unlocking unit, provided between the locking unit and the battery (160, 260), for providing a pushing force against the battery (160, 260) to unlock it from the main body (110, 210) when the push button (140, 240) is pressed towards the main body (110, 210), wherein the unlocking unit comprises a first stopping jaw (167, 267) formed on the battery (160, 260); a second stopping jaw (181, 281) configured to engage with the first stopping jaw (167, 267) for locking the battery to the battery mounting part; and a rod (170, 270) configured to push the battery (160, 260) in a direction to disengage the first stopping jaw (167, 267) from the second stopping jaw (181, 281), when the push button (140, 240) is pressed. an elastic connection terminal for electronically connecting the battery to the electronic device when the battery is mounted to the battery mounting part (120, 220); a push button (140, 240) configured to be pressed towards the main body (110,210); a locking unit (131, 231), provided between the battery cover (150, 250) and the main body (110, 210), for locking the battery cover (150, 250) to the main body (110, 210), wherein the locking unit includes a first stopping member (153, 253) formed on the battery cover (150, 250) and a first hook member (143, 243) formed on the push button (140, 240) configured to catch with the first stopping member (153, 253) and to move away from the first stopping member (153, 253) of the battery cover (150, 250), when the push button (140, 240) is pressed towards the main body (110, 210); and an unlocking unit, provided between the locking unit and the battery (160, 260), for providing a pushing force against the battery (160, 260) to unlock it from the main body (110, 210) when the push button (140, 240) is pressed towards the main body (110, 210), wherein the unlocking unit comprises a first stopping jaw (167, 267) formed on the battery (160, 260); a second stopping jaw (181, 281) configured to engage with the first stopping jaw (167, 267) for locking the battery to the battery mounting part; and a rod (170, 270) configured to push the battery (160, 260) in a direction to disengage the first stopping jaw (167, 267) from the second stopping jaw (181, 281), when the push button (140, 240) is pressed.