An emergent processing device for a damaged storage battery mainly comprises a control module, a crystal oscillating module, a reference voltage module, a power supply module, a driving module, a battery detecting module, a short circuit control module and a work state indicator, wherein the control module mainly adopts an AT89C2051 chip, and the crystal oscillating module is connected to the control module which provides a clock for the device so as to meet overall recognition, control and signal processing requirements; the control module is further connected with the reference voltage module and the power supply module which provide required voltage for the overall running of the device; one circuit of the control module is connected with the short circuit control module through the driving module, and the short circuit control module is driven by the driving module; the voltage of the storage battery is acquired by the battery detecting module through the short circuit control module, and the accurate measurement of the voltage value of the storage battery and the accurate judgment of the polarities of the storage battery are carried out by the control module. The emergent processing device has the characteristics of being simple in structure, convenient to use, reliable, capable of meeting the requirements of detecting and changing the damaged storage battery and the like.