Abstract: The conventional methods of preparing superfine medicament particles are presented. Two common methods of supercritical fluids recrystallization，rapid expansion of supercritical solution and supercritical anti-solvent crystallization are introduced. Their applications are presented，and the research work in the field of Chinese traditional medicine is reviewed. The prospect of supercritical fluids recrystallization technology as a new way to prepare fine particles of Chinese traditional medicine is also presented. Some problems still exist，such as low yield，high cost，and the technique and equipment are to be improved.