A high speed screening analysis system for reaction optimization, comprising: a sample injection part for introducing a sample; a plurality of reactant-coating parts disposed radially around the sample injection part and coated with a substance reacting with the sample; a plurality of injecting micro channels connecting the sample injection part and the plurality of reactant-coating parts, each of the injecting micro channels being connected with each of the reactant-coating parts; and characterized in that it comprises: an absorbing part connected with the reactant-coating parts and for absorbing remaining sample after reaction in the reactant-coating parts, wherein other parts than the sample injection part, the reactant-coating parts, the injecting micro channels, and the absorbing part on a plate-shaped material are formed by coating with hydrophobic wax, and a plurality of discharging micro channels connecting the plurality of reactant-coating parts and the absorbing part, each of the discharging micro channels being connected with each of the reactant-coating parts, wherein each of the injecting micro channels and the discharging micro channels has a micropillar structure (121, 151), and wherein the micropillar structure (121, 151) is comprised of dots patterned with wax and having a regular arrangement. a sample injection part for introducing a sample; a plurality of reactant-coating parts disposed radially around the sample injection part and coated with a substance reacting with the sample; a plurality of injecting micro channels connecting the sample injection part and the plurality of reactant-coating parts, each of the injecting micro channels being connected with each of the reactant-coating parts; and characterized in that it comprises: an absorbing part connected with the reactant-coating parts and for absorbing remaining sample after reaction in the reactant-coating parts, wherein other parts than the sample injection part, the reactant-coating parts, the injecting micro channels, and the absorbing part on a plate-shaped material are formed by coating with hydrophobic wax, and a plurality of discharging micro channels connecting the plurality of reactant-coating parts and the absorbing part, each of the discharging micro channels being connected with each of the reactant-coating parts, wherein each of the injecting micro channels and the discharging micro channels has a micropillar structure (121, 151), and wherein the micropillar structure (121, 151) is comprised of dots patterned with wax and having a regular arrangement. an absorbing part connected with the reactant-coating parts and for absorbing remaining sample after reaction in the reactant-coating parts, wherein other parts than the sample injection part, the reactant-coating parts, the injecting micro channels, and the absorbing part on a plate-shaped material are formed by coating with hydrophobic wax, and a plurality of discharging micro channels connecting the plurality of reactant-coating parts and the absorbing part, each of the discharging micro channels being connected with each of the reactant-coating parts, wherein each of the injecting micro channels and the discharging micro channels has a micropillar structure (121, 151), and wherein the micropillar structure (121, 151) is comprised of dots patterned with wax and having a regular arrangement.