Artemisa Sphaerocephala Krasch, grown in the territory of Mongolia has confi rmed to possess considerable amount of Polysaccharide. This secret revelation of high molecule content of polysaccharide is regarded as a new discovery in natural sciences. For the past years, scientist has been striving to fi nd antigen from polysaccharide of plants for antibody protection in order to eliminate immune defi ciency in the body. The aim of our work intends to defi ne the mechanism of effects of polysaccharide contained in one Gobi plant. The study was carried out on polysaccharide preparation for immunization of Artemisia Sphaerocephala Krasch. Study on the effect of the preparation on spleen and lymph nodes: The most effective period of Artemisia Sphaero­cephala Krasch preparation on the animals was observed by “Olympus” microscope by coloring with Methylgreen-Pyronin by the alternative method of revealing nucleic acid of Papanheum Unna., Cook. The actions against of anticomplementary activity of polysaccharide preparation from Artemisia Sphaerocephala Krasch: The polysaccharide preparation showing 76.59% effective in immunoreactions. Our series of investigation prove that the preparation. Membrane protection effect of polysaccharide preparation of the Artemisia Sphaerocephala Krasch: Polysaccha­ride preparation of Artemisia Sphaerocephala decreased of the accumulation on lipid per oxidation products and showed membrane protective and antioxidant effect. The preparation showed that increases the stability of cells membrane. Artemisia Sphaerocephala Krasch is immune stimulatory activity and increase body resistance is due to polysac­charides.