To provide a globular composite polyimide fine particle and polyamic acid fine particle having a flat and smooth surface, and to provide a method for producing the same.

The polyamic acid fine particle or polyimide fine particle has, on an outer layer of a core fine particle (D), at least two layers of a polyamic acid layer and/or a polyimide layer, and has a flat and smooth surface the surface roughness of which is 20 nm. It is preferable that the thickness of the polyamic acid layer and/or the polyimide layer, both provided on the outer layer of the core fine particle (D), be 0.1-400 m.