▎ 摘　　要

NOVELTY - Producing polyimide aerogel comprises (a) preparing a polyamic acid salt by dissolving diamine, dianhydride and tertiary amine-based photocuring agent in an organic solvent; (b) dissolving the polyamic acid salt of step (a) in water, and adding a photoinitiator to prepare polyamic acid salt solution; (c) curing the polyamic acid salt solution prepared in step (b); and (d) performing lyophilization and heating. USE - The method is useful in producing polyimide aerogel for three-dimensional models conveniently in various fields i.e. automobiles, food, medical care, and art. ADVANTAGE - The method produces polyimide aerogel in short period of time; and is environmentally friendly.