Abstract: With the development of society, ecological environment of water is continually worse, and the problem of contamination of groundwater in many districts is more and more serious nowadays. The technology of treatment for the inorganic contamination of groundwater is quickly developing, western countries have already got a large number of projects of water treatment, such technology in our countryis just the beginning. The following paper is to focus on the inorganic contamination in groundwater, research their harmness and summarize the new technology of the treatment of inorganic contaminant all over the world. Such work is expected to be good to the investigation and treatment of the contamination of groundwater.