The invention discloses a charged gun electronic lock power-failure automatic unlocking circuit which comprises a power supply. The charged gun electronic lock power-failure automatic unlocking circuit is characterized in that the output of the power supply is connected to a charging loop, the output of the charging loop is connected to a super capacitor, the output of the super capacitor is connected to an on-off loop, and the output of the on-off loop is connected to an electronic lock. According to the charged gun electronic lock power-failure automatic unlocking circuit, simulation components and parts are adopted wholly, cost is low, reliability is high, and anti-jamming capability is strong.