The present application provides a medicament having an anti-inflammatory bowel disease function, and a preparation method therefor and an application thereof. The medicament has a structure as represented in formula I or formula II. The medicament and a pharmaceutically acceptable salt, a solvate, a prodrug, a tautomer, a stereoisomer, or a pharmaceutical composition thereof provided by the present application have a good effect on inflammatory bowel diseases, can be used for preparing medicaments for treating the inflammatory bowel diseases, and have important clinical significance and wide application prospects.