Catalyst for preparing ethanol through catalytic hydrogenation of methyl acetate and preparation method of catalyst

The invention provides a catalyst for preparing ethanol through catalytic hydrogenation of methyl acetate. The catalyst takes a ZnO modified organic metal framework MIL-101 as a catalyst carrier, and takes a nano metal crystal prepared from active metal as a catalyst main body; AND the catalyst comprises the following components in percentage by weight: 1-20% of active metal and the balance of ZnO modified organic metal framework MIL-101, wherein the total weight of the active metal and the organic metal framework MIL-101 is 100%. The active component of the catalyst is nickel nano metal crystals, and a large number of dangling bonds are easier to coordinate with a substrate; a ZnO modified organic metal framework MIL-101 is selected as a carrier and has completely free and smooth pore channels, so that 100% of metal ions exposed in the pore channels are completely utilized, and the effect of preventing particles from growing and agglomerating is achieved; and ZnO is used as a modifier, and a layer of water f