Inflammatory bowel disease (IBD) is a family of chronic inflammatory diseases such as Crohn's disease (CD) and ulcerative colitis (UC). Among the serious malignancies that can arise from IBD, colorectal cancer is particularly prevalent. Individuals suffering from both IBD and CRC often endure similar symptoms, which include diarrhea, rectal bleeding, abdominal discomfort, weight decline, and profound exhaustion. Sanyeqing is a traditional herbaceous medicinal plant with anti-tumor, anti-inflammatory, analgesic, heat-clearing, detoxifying, and liver-protecting effects. Here, we summarize the possible molecular mechanisms of IBD and CRC, and summarize the potential role of Sanyeqing in clinical therapy for IBD and CRC. Investigating the etiology of enteritis and intestinal cancer, as well as exploring Sanyeqing's potential as a preventive and therapeutic agent, is of paramount importance in the battle against these diseases.