The invention relates to a backup energy-storage power supply managing system of a coal mine electronic device, which comprises a municipal power of a rectified power supply for supplying power to all circuits, a backup power supply and the coal mine electronic device, wherein the rectified power supply is connected with a charging module, the charging module is connected with the backup power supply through a connecting port, the backup power supply comprises a battery pack, a microcontroller unit (MCU), a temperature detection module, a current detection module, an intelligent voltage detection module, a balance module, a display module, a charging/discharging switch circuit and an alarming circuit, the charging module is used for charging the battery pack, and the battery voltage detection module detects the voltage of a single-body battery of the battery pack. The backup energy-storage power supply managing system of the coal mine electronic device has the advantages of long service life, good safety performance, directly-viewed displaying of parameters of the battery pack, effective alarming for abnormality and the like. The backup power supply can continue to run under the situation of power failure, so the normal work of the coal mine electronic device can be continued, the running stability of the coal mine electronic device can be greatly improved, and powerful technical support can be provided for the safe and high-efficient production of an entire coal mine.