Colorectal polyp refers to a kind of elevated lesion protruding from the mucosal surface of the large intestine into the intestinal lumen, and the etiology is complex and diverse. Ancient and modern medical doctors believe that "spleen deficiency" is the key mechanism of colorectal polyps, and many clinical research data show that spleen and stomach weakness, spleen deficiency and colorectal polyps are closely related, according to the principle of Chinese medicine, "seek the root cause of the disease", clinically, we can take "spleen" as the basis for the treatment of colorectal polyps. According to the principle of "treating the disease at its root" in Chinese medicine, the clinical practice can be based on the theory of "spleen" as the entry point for the treatment of colorectal polyps and the addition and subtraction of clinical evidence, thus opening up a new way of thinking for the treatment of colorectal polyps.