At present, there are many anti-tumor drugs, but no ideal, efficient and low-toxicity anti-throat cancer drugs have been found. Therefore, the research of high-efficiency, low-toxicity, and even natural anti-tumor drugs to enrich the prevention and treatment methods of laryngeal cancer has become a hot spot and focus of many experts and scholars committed to research. Indole-3-carbinol is a chemopreventive substance for tumors that can be extracted from cruciferous vegetables such as broccoli, radish and cauliflower. Indole-3-carbinol inhibits the initiation and progression of a variety of tumors