Soil arsenic pollution has become an important environmental problem,which needs to solve urgently.Insitu solidification/stabilization technology has been shown to be one of the most costeffective techniques,and Febased media is the best material for the immobilization of arsenic in soil.The paper proceeded from the research status of arseniccontaminated soil remediation with typical iron containing materials and elaborated the mechanism for solidifying arsenic,including adsorption,complexation and precipitation/coprecipitation.The five commonly used methods to evaluate the efficiency of arsenic solidification were introduced,including chemical form sequential extraction procedure,toxicity characteristics leaching procedure，indicator plant method，in vitro digestion and modern physics method,respectively.The effect of soil environmental conditions,such as acid and alkali,redox conditions and the changes of coexisting ions and organic matter in soil,on arsenic fixation were also analyzed.The deficiencies of the present research on the application of iron containing materials in the remediation of arsenic contaminated soil were also summarized.Finally,the paper pointed out the research emphasis of soilremediation with the ironcontaining materials in the future.