Abstract: The contents of copper, zinc, iron and manganese in underground well water, landscape water sample, and snowfall water were determined by the flame atomic absorption spectrophotometry. The research results showed that the average recoveries of copper, zinc, iron, manganese in water samples were 95%~105%, the well water samples of copper, zinc, manganese achieved the class Ⅰ standard, Fe in well water class Ⅱ standard. The copper, zinc and iron in the water samples accorded with the class A standard and the requirements of landscape water standard. Copper, zinc contents in melted snow water samples accorded with class Ⅱ standards, iron, manganese contents went beyond the limit of surface water standard. By comparing the contents of four metal elements in three water samples. A theoretical basis for the prevention and control of heavy metal pollution in the water of Yining city is provided.