Power supply control circuit, dry battery power supply equipment and power supply control method

The invention provides a power supply control circuit, dry battery power supply equipment and a power supply control method. The power supply control circuit comprises a low-power consumption processor, a first power supply branch and a second power supply branch, wherein the first power supply branch is used for directly transferring a power supply voltage of a dry battery to an output module ofthe dry battery power supply equipment in an enabled state, the second power supply branch is used for performing voltage stabilization and adjustment on the power supply voltage of the dry battery, the power supply voltage is provided for the output module by the voltage after voltage stabilization and adjustment, and the low-power consumption process is used for enabling the first power supply branch if that the voltage of the dry battery is within a working voltage range of the output module is judged and enabling the second power supply branch if that the voltage of the dry battery is notwithin the working voltage