Heat insulation sheet and method for manufacturing same

A heat insulation sheet according to the present invention comprises: a heat insulation layer formed as a nano fiber web having a plurality of pores by electrospinning polymeric material; and an adhesion layer, laminated one or both sides of the heat insulation layer, formed as a nano fiber web having a plurality of pores by electrospinning adhesion material, and thus the heat insulation sheet can be made thin and so as to have a plurality of fine pores, thereby improving the heat insulation effect thereof.