The invention relates to an amphipathic compound of curcumin derivates and polyoxyethylene as well as a preparation method thereof, wherein PEO is polyoxyethylene, and R1, R2, R3, R4, R5, R6, R7, R8, R9, and R10 which are independently selected from hydrogen atom, hydroxide radical, phenyl, linear chain or branched chain alkyl group, linear chain or branched chain alkoxy, amidogen, mono-alkylation amidogen, dialkyl amine amidogen, halogen and halogenate alkyl group. The compound has the advantages of good compound stability, good water-solubility, good biocompatibility, low toxic and side effects, high bioavailability, low production cost and the like, and is easy to inject and administrate and the preparation process is simple. In addition, the invention also relates to an application ofthe amphipathic compound of curcumin derivates and polyoxyethylene in preparing the medicaments for resisting fatty liver, hepatic fibrosis and cirrhosis. The amphipathic compound has obvious pharmacology activity of resisting inflammation and hepatic fibrosis, delaying the forming of cirrhosis and reducing blood fat.