The invention relates to the field of intelligent mobile equipment design and accessories, in particular to an anti-overcharging charging method and an anti-overcharging device of intelligent mobile terminal equipment. The anti-overcharging charging method is characterized in that a controller is arranged in a charging line between the intelligent mobile terminal equipment and a charging power supply; a signal connection is arranged between the intelligent mobile terminal equipment and the controller and the controller receives the signals of the intelligent mobile terminal equipment to know the charging state of the intelligent mobile terminal equipment; and the open state and the closed state of the charging line are controlled through the controller. The anti-overcharging charging method and the anti-overcharging device of the intelligent mobile terminal equipment have the advantages that the information of the battery state of the intelligent mobile terminal equipment can be expressed as audio signals which are fed back to the charging device; the charging device can automatically cut off the charging line for charging the intelligent mobile terminal equipment in time when the battery is fully charged, the overcharging situation is avoided, and the service life and the safety of the battery of the intelligent mobile terminal equipment are greatly improved; the structure is very simple, the cost is very low and the use and the popularization are facilitated.