The present invention relates to a solar module for converting a control apparatus and control method of a stand-alone solar power generation system, the sunlight into direct current (10); The battery unit 20 to charge the direct current output from the solar cell module (10); Charging controller 30 that charges the direct current supplied from the solar cell module 10 to the battery unit 20 or discharged; Inverter 40 to be supplied to the charging controller 30, the direct current is converted to an alternating current load 50, which is supplied from; including, but, provided on the input end of the charging controller 30, the solar cell module ( 10) and the charge controller (power amount detection part 60 for detecting the amount of power supplied to 30), provided on the input end of the battery unit 20, a charge is detected to detect the amount of charge that is charged in the battery section 20 section 70 and, provided on the output terminal of the inverter 40, and the inverter 40, the load (50) supply amount detection unit 80 for detecting the current supply amount to be supplied from the power detection section 60 and to supply the minimum power required for said charge detecting section 70 and the supply amount detection unit receives the information detected from the 80 control the charging and discharging of the battery unit 20 and the load 50 It comprises a control module 90 for controlling the charging controller, by controlling the charging and discharging of the battery unit 20, and controls the charge controller to supply the minimum power required for the load 50, the high battery of It can extend the service life.