PURPOSE: A disposable pad excluding a use of high-absorbent resin and optical bleaching agent is provided to prevent the generation of environment hormones including dioxin etc., to prevent a skin reaction when using a pad, and to minimize environmental pollution due to a use of disposal pad.CONSTITUTION: A manufacturing method of a high-absorbent sheet using cotton cellulose comprises the following steps: molding cotton cellulose to a sheet first-injecting isopropyl alcohol into the molded cotton cellulose sheet and mixing them together injecting NaOH into the outcome from the previous step and mixing them together injecting monochloroacetic acid into the outcome from the previous step and mixing them together removing a mixed liquid of the isopropyl alcohol, NaOH and monochloroacetic acid from the mixture above second-injecting the isoprophyl alcohol into the mixture from which the mixed liquid is removed injecting glacial acetic acid into the outcome from the previous step and mixing them together removing a mixed liquid of the isoprophyl alcohol and glacial acetic acid from the mixture from the previous step third-injecting the isoprophyl alcohol into the mixture from which the mixed liquid is removed, and mixing them together removing the isoprophyl alcohol from the mixture from the previous step and cutting the mixture after drying the mixture.COPYRIGHT KIPO 2013[Reference numerals] (AA) Molding cotton cellulose to a sheet(first step) (BB) First-injecting isopropyl alcohol into the molded cotton cellulose sheet and mixing them together(second step) (CC) Injecting NaOH into the outcome from the previous step and mixing them together(third step) (DD) Injecting monochloroacetic acid into the outcome from the previous step and mixing them together(fourth step) (EE) Removing a mixed liquid(fifth step) (FF) Second-injecting the isoprophyl alcohol into the mixture from which the mixed liquid is removed(sixth step) (GG) Injecting glacial acetic acid into the outcome f