Purpose: the core of the medical principle of Guo Lin New Qigong is both to tonify and to purge.Its obvious therapeutic effect is based on the propriety of tonifying and purging.Furthermore, the propriety of tonifying and purging is in accordance with treatment based on syndrome differentiation.It emphasizes that practitioners should pay much attention to and correctly carry out treatment based on syndrome differentiation.It is also the key for Guo Lin New Qigong to be properly practiced to get best curative effect.Contents: terms definition, the means of treatment based on syndrome differentiation and some cases;Conclusion: the principle of treating the same disease with different methods and treating different diseases with same method is explained through the cases.The practitioners should discard the idea of treating the same disease with same method and treating different diseases with different methods and make the practice plan based on syndrome differentiation.Only in this way can the unique advantages of the naturopathy of Guo Lin New Qigong fully and optimally realized in cancer prevention and anticancer.