A double glazing insulation system of the present invention is characterized by including: double glazing having a chamber formed between a pair of glass windows, a bead entrance through which air and a plurality of beads enter and exit the chamber, and an air entrance through which air enters the chamber; a storage tank for storing the plurality of beads; a bead flow pipe guiding the plurality of beads such that the beads flow; an air exhaust pipe guiding the flow of air discharged from the storage tank; an air flow pipe guiding the flow of air entering and exiting through the air entrance; and a main blower which sucks air of the chamber through the air flow pipe or through the air exhaust pipe, thereby filling the chamber with the plurality of beads or discharging the same from the chamber.