Professor Wang Canhui of Nanjing University of Traditional Chinese Medicine is a well-known Chinese medicine doctor in China. During more than 60 years of clinical and scientific research teachin g, he has formed his own unique thinking and prescription characteristics of syndrome differentiation. Inspired by ancient prescriptions and combined with long-term clinical practice, Professor Wang Canhui created the "invigorating the spleen and benefiting the stomach formula", which has a remarkable effect in the clinical treatment of precancerous gastric lesions. To analyze the invigorating the spleen and benefiting the stomach formula from the aspects of prescription preparation idea, compatibility characteristics, clinical application, to explore Professor Wang Canhui's experience of invigorating the spleen and benefiting the stomach formula in the treatment of precancerous lesions of gastric cancer for reference.