Based on the long-term clinical practice and scientific researches on the three methods for the stage-treatment of Parkinson's disease put forward by the author in the early years, this essay further discusses the division of the three stages of Parkinson's disease. Early stage: Appearance of the early symptoms and signs of Parkinson's disease, but short in duration and mild in severity, which do not affect the social communications, daily life and work of the patient; and their modified Hoehn & Yahr grading is 1.0-1.5. Mid stage: With the symptoms and signs of Parkinson's disease getting worse and affecting the social communications, daily life and work of the patient, those who have their modified Hoehn & Yahr grading 2-3 need medical treatment. Late stage: The patients have severe clinical symptoms of Parkinson's disease, and Levodopa preparation is insufficient for them to maintain their daily life; and their modified Hoehn & Yahr grading is 4-5. The three treating methods are: TCM medical treatment adopted at the early stage; the combined treatment of Chinese and western medicine at the mid stage; and comprehensive treatment with multi-therapies at the late stage.