Abstract： Menstrual disease is common in clinic. The authors summarized and analyzed the related discussions of menstrual disease in Dongyi Baojian，which included its basic theory as well as syndrome differentiation and treatment，so as to provide reference for the clinical practice of menstrual disease. The understanding of the mechanism of menstrual disease in this book follows the theory from Huangdi Neijing，and learns from theories of varied schools in different ages. It values the changes in emotions in respect of etiology and pathogenesis，qi and blood in physiology，the heart and the spleen in five viscera. As for the treatment，it advocates tonification，unblocking and clearing. Besides，it also pays attention to the application of simple prescription.