Kusama Yayoi s work is simple and complex. From the beginning to the last few years, her work has been full of ‘dot patterns’, especially small and large dots. In her works, ‘dots’ including instantaneity, repeatability, continuity, and infinity become the most important elements and forming themes of infinite space. The purpose of this article is to analyze Yayoi Kusama s infinite space processing methods and characteristics as a medium for Yayoi Kusama s representative formation elements and mirrors, and realize infinite space through ‘self-similarity’ and ‘self-obliterate’. In particular through the repetition of points and mirrors, Yayoi Kusama s important form conveys the fusion of real and virtual experiences. In addition The mirror room also provides a visual extension beyond consciousness and unconsciousness. This feature is to experience a strange and beautiful new world, which is not felt in reality when small fragments break down and reflect from invisible cosmic space. Yayoi Kusama realizes the space of all possibilities beyond reality and unreality through the dots and mirrors of the zero and emptiness symbols, and tries to reveal the infinite in the mind.