The present invention discloses an intelligent quick charger, comprising an input protection circuit, an EMC rectification filtering circuit, and a resonant converting circuit, wherein the input protection circuit is connected with the resonant converting circuit through the EMC rectification filtering circuit. The intelligent quick charger is characterized in that: the intelligent quick charger also comprises a PWM controller, an auxiliary power supply circuit, a microprocessor, a charging-discharging sampling circuit, and an overvoltage, overcurrent and short circuit protection circuit, wherein the PWM controller charges a charged storage battery through control of the microprocessor, one end of the charging-discharging sampling circuit and one end of the overvoltage, overcurrent and short circuit protection circuit are connected with the charged storage battery, the other end of the charging-discharging sampling circuit and the other end of the overvoltage, overcurrent and short circuit protection circuit are connected with the microprocessor; and the EMC rectification filtering circuit supplies power to the microprocessor through the auxiliary power supply circuit. The intelligent quick charger of the present invention improves a quick charging capability of a charger, and has good charging balance at the same time, thereby facilitating improvement of the service life of a battery.