Professor Ji Laixi is good at treating common clinical diseases with the combination of New Nine Needles. This paper introduces Professor Ji′s clinical experience in the treatment of acute and chronic stomach pain. According to the patient′s state of illness, different treatment methods were used. Acute stomach pain was treated on point GV9(Zhiyang) with fire needle, and filiform needle therapy " stomach disease prescription" was combined with four-bend points bleeding, while chronic stomach pain was treated by embedding thread therapy with fire needle, filiform needle, and specific electromagnetic wave spectrum (TDP). The combined use of a variety of needles makes up for the shortcomings of the general treatment methods such as short stimulation time, not lasting curative effect, and the difficulty to consolidate after the recovery of the disease. It has achieved satisfactory clinical effect and has good value of clinical popularization and application.