Professor XU Jingfan has engaged in medicine for more than 60 years, especially for the diagnosis and treatment of the spleen and stomach diseases.Professor XU Jingfan believes that the main causes of reflux esophagitis are improper diet, six exogenous pathogenic factors, excessive anxiety, weakness of spleen and stomach, etc.The pathogenesis of reflux esophagitis always belongs to failure of stomach qi governing descending, disorder of qi movement, the location of the disease is in the esophagus, which is closely related to stomach, spleen and liver.In the treatment, emphasis should be laid on regulating the stomach, spleen and liver.The main therapeutic methods are descending method, harmonizing method and resolving method.He uses descending method such as harmonizing stomach and descending adverse qi, ascending spleen and descending stomach; harmonizing method such as soothing liver and harmonizing stomach, clearing liver and harmonizing stomach, harmonizing body and mind; resolving method such as promoting digestion and resolving food stagnation, dissolving phlegm and transforming qi, activating blood and resolving stasis.Meanwhile, he original creates paste administration method with lying position to protect esophageal mucosa.