The aim of this study is to develop an innovative household escape suit design that takes advantage of the unique properties of Micro Granular Foamed Silica (MGF), an advanced thermal insulation material, combined with polyimide and aluminum foil films to improve the thermal protection efficiency and safety of clothing. Porous vacuum silicon becomes the core material of heat insulation layer because of its extremely low thermal conductivity, which can effectively isolate heat transfer in high temperature environment and provide immediate thermal protection for the wearer. Polyimide, as a kind of high-performance thermoplastic, is selected as the support structure of porous vacuum silicon heat insulation layer because of its excellent thermal stability and mechanical strength. Because of its good thermal reflection characteristics, aluminum foil film is applied to the outer layer of clothing, which further reduces the absorption of thermal radiation and improves the thermal protection effect.