Disclosed is a composition for preventing or treating hepatitis containing a monoacetyl diacylglycerol compound which not only can effectively prevent and treat hepatitis, but also is safe without any side effects when used. The composition contains a monoacetyl diacylglycerol compound represented by Chemical Formula 1 in the specification as an active ingredient. In Chemical Formula 1 of the specification, R1 and R2 are each independently a fatty acid group having 14 to 22 carbon atoms.
