Abstract: The distribution of trace elements in a soil-grass-Przewalski’s gazelle ecosystem were studied together with their influence on the growth and reproduction of Przewalski’s gazelle. Soil and herbages in the habitat of Przewalski’s gazelle together with the blood and the wool of Przewalski’s gazelle were sampled. The contents of Se, Cu, Mn, Fe, Zn and Mo were assayed and their relevance was analyzed. The soil in the habitat had a serious lack of Se and Mo in summer, but of Cu, Mo and Zn in autumn and winter, whereas Fe and Mn were very rich in all three seasons. Cu, Mo and Se were severely lacking in the forage, but Fe, Mn and Zn contents were normal. There were positive correlations for the contents of Cu, Mn Zn and Se in the forage and the soil in summer, for Cu or Zn in antumn and for Mo in winter. In winter, the contents of Fe, Mn, Zn in the blood of Przewalski’s gazelle were higher than in the wool. Cu, Mo, Se content was slightly lower than serum; In addition, one female Cu, Zn in the Przewalski’s gazelle serum were low, the content was 4.96 and 4.63 μmol/L, respectively, the rest of four Przewalski’s gazelle serum Cu, Zn content were about 9.50 and 7.81 μmol/L.