The invention discloses a mobile power supply based on supercapacitor energy storage. The invention relates to mobile power equipment, and specifically relates to the mobile power supply based on the supercapacitor energy storage. The mobile power supply is characterized in that the mobile power supply comprises a charging control system, a supercapacitor, a DC/DC boost system, an electric quantity display system, and a power intelligent management system; the power intelligent management system carries out the management of the charging control system and the DC/DC boost system and the control of the electric quantity display system through the voltage sampling of the supercapacitor. The mobile power supply is high in safety, is high in charging and discharging speed, and is long in cycle service life. The number of deep charging and discharging cycle use times can reach 500,000, and the mobile power supply is strong in big-current discharge capability.