The invention discloses a comprehensive treatment method for high-concentration chlorine-containing organic waste gas. The comprehensive treatment method comprises: (1) introducing waste gas into a heat storage oxidation reactor, oxidizing, and controlling the temperature of the flue gas outlet of an oxidation bed layer at less than 100 DEG C; (2) leading out the obtained high temperature flue gas excluding the high temperature flue gas for maintaining heat storage reaction energy balance from the middle portion high temperature zone of the reactor, entering a Stirling generator, and controlling the temperature of the flue gas outlet after the electricity generation at less than 100 DEG C; (3) mixing the flue gases discharged in the step (1) and the step (2), conveying the mixed flue gas into an alkali liquid absorption tower, completely absorbing the acid gas in the flue gas, decreasing the flue gas temperature to less than 60 DEG C, and discharging the purified gas meeting the standard; and (4) conveying the absorption waste liquid into an electrochemical regeneration device, wherein the regenerated alkali liquid returns to an alkali washing absorption tower so as to be recycled. According to the present invention, the purified gas after the treatment can achieve the discharging standard, the waste of a lot of energy cannot be caused, the subsequent treatment does not require the arrangement of the cooling device, a large amount of absorption waste liquid cannot be produced, and the economy is improved remarkably.