The invention discloses an FXR receptor modulator, and a preparation method and an application thereof, belonging to the field of medicinal chemistry. The FXR receptor modulator with a structure characteristic as shown in a formula I in the specification or pharmaceutically-acceptable salts or stereoisomers or solvates or prodrugs thereof can bind with an FXR (i.e., NR1H4) receptor and is used as an agonist or a partial agonist of the FXR receptor, thereby being able to be applied to prevention and treatment of FXR mediated diseases, such as chronic intrahepatic or extrahepatic cholestasis, hepatic fibrosis caused by chronic cholestasis or acute intrahepatic cholestasis, or chronic hepatitis B, or gallstone, or liver cancer, or colon cancer, or inflammatory bowel diseases, etc., wherein a part of compounds specifically can reach an FXR-excited EC<50> of 100 nM or below, show good FXR agonist activity, have excellent application prospects, and provide a new medicine choice for clinical treatment of the FXR mediated diseases.