Environment-friendly and energy-saving mobile power supply

An environment-friendly and energy-saving mobile power supply comprises a shell, a charge interface, a charge indicating lamp, a discharge interface, a power display panel, a charge switch, a protection circuit, a charge management system and a boost system. A rear cover of the shell is detachable, a cavity of the shell is provided with an electric core groove, an electric core is installed in the electric core groove, and the electric core can be replaced as required. The protection circuit, the charge management system and the boost system can be fixedly encapsulated in the shell or respectively installed in an installation slot of the cavity of the shell and can be detached and replaced as required. Vulnerable devices of the environment-friendly and energy-saving mobile power supply are detachable so that any device can be directly replaced when being damaged, and other devices can continue to be used. The mobile power supply can be prevented from being completely abandoned, unnecessary waste cannot be cau