The self-designed experiments of extract preparations is practiced in pharmacy teach-ing. Students work in groups， first consulting literature material， selecting the prescription and devis-ing a plan. Then， if the plan has carried on the feasible proof， students begin to purchase raw materi-als， complete the extraction and separation of effective components， the preparation of molding and the analysis of experimental results and finally form their self-evaluation. This experiment can strengthen students' experiment skill and promote their comprehensive application ability of all the subjects in the pharmacy field. At the same time it can also play an important role in the improvement of the students' social practice ability and the cultivation of students' creative thinking.