WANG Ji's opinion on moxibustion therapy in Questions and answers of acupuncture and moxibustion (Zhenjiu Wendui) was explored and analyzed. With his two contraindications of moxibustion as breakthrough points, the arrangement and discussion was performed. The results showed that based on summary of moxibustion treatment theory before Ming dynasty, WANG Ji could provide characteristic idea, which is of great reference value and guide significance to the inheritance and development of moxibustion.