The invention provides a self charging walking electrically power assisted bicycle, which comprises a bicycle frame, bicycle wheels, bicycle shafts, an
electric motor and a storage battery, wherein the
electric motor is arranged on the bicycle shafts, and the storage battery provides
motive power for the
electric motor. The invention is characterized in that a set of chain wheels and gears is arranged on a fly wheel of the back bicycle shaft and drives a permanent magnetic
AC power generator to generate power through the transmission to a chain wheel or a gear arranged on a shaft of the permanent magnetic
AC power generator via a chain or the gear, an output winding of the permanent magnetic
AC power generator is connected with a
detector, an intelligent controller, a power supply
processing circuit and a
motor control circuit, the
detector is connected with an electric
motor control circuit, the electric motor and the storage battery, and an output lead of the storage battery is connected with the electric motor. When the
electric bicycle is in normal operation, an internal-
combustion AC power generator set assembled in the
electric bicycle provides the
motive power for the
electric bicycle. When the speed reaches 20 km per hour, the power generation amount of a self power generator also has excessive
electric energy to be charged to the storage battery.