▎ 摘　　要

NOVELTY - Preparing 4,4',-diaminodicyclohexylmethane (I), comprises catalytic hydrogenation of 4,4'-diaminodiphenylmethane (II) to obtain final product. The content of first isomer of (I) in the product is about 70 wt.%. USE - The method is useful for preparing 4,4',-diaminodicyclohexylmethane. ADVANTAGE - The method utilizes graphene-loaded ruthenium catalyst which has excellent selectivity under the condition of high temperature and high pressure, only a small amount of amino group falls off, and the conversion rate is high. DETAILED DESCRIPTION - Preparing 4,4',-diaminodicyclohexylmethane of formula (I), comprises catalytic hydrogenation of 4,4'-diaminodiphenylmethane of formula (II) to obtain final product. The content of first isomer of (I) in the product is about 70 wt.%.