The present invention relates a new crystalline form of obeticholic acid and preparation method thereof. In particular, the present invention relates a type E crystal of obeticholic acid and preparation method thereof. The type E crystal of obeticholic acid is stable, and the solvent residue is low, and is suitable for industrial production.本發明涉及一種奧貝膽酸的新結晶形式及其製備方法。具體而言,本發明涉及奧貝膽酸的E型結晶及其製備方法。該晶型十分穩定,且溶劑殘留低,適於工業化生產。