The structure and principle of the product are similar to those of the tubular graphite falling film absorber, except that the absorption, cooling and separation parts are composed of the block hole graphite condenser. In addition to the characteristics of tubular falling film absorber, the circular block hole graphite falling film absorber also has the advantages of high structural strength, good thermal shock resistance, high mass and heat transfer efficiency, and convenient maintenance. It is a kind of gas absorption equipment with superior performance.