The present invention provides a locking
system and an unlocking method for an
electric bicycle that can be unlocked by a person who holds the unlocking device, can be unlocked without performing a manual unlocking operation, and can prevent the battery from being reduced in
electric power consumption without using an
electric bicycle. . The locking
system for the
electric bicycle is configured asfollows, and is provided with a portable unlocking device (50) that transmits a lock
signal including the inherent identification information and unlocks the lock device (30), with respect to the lock device (30). The locked electric bicycle can be unlocked by transmitting an unlocking
signal from the unlocking device (50). The electric bicycle is provided with a main body
communication unit (41)that communicates with the unlocking device (50), a power button that turns the power supply from the battery (8) on and off, and an unlock
control unit (42), and is pressed by the power button. Turning on, power is supplied from the battery (8) to the main body
communication unit (41) and the unlocking
control unit (42), and the unlocking
control unit (42) causes the lock device (30) to be unlocked when receiving the unlocking
signal from the unlocking device.