The Caishigou iron deposit is located in Goukouquan area, the northern margin of Altyn Mountains, as a small-sized one found in 2008, the iron deposit found in silicilith and form of silicalite formation. Thin layer rocks include interbedding of iron horizon and iron-bearing siliceous rock and silicilith, iron horizon is enrichment in some local section. In this paper, based on the analysis of characteristics of geology and physics, a comparative study of existing deposits is summarized. The evidence showed that the Baijianshan iron ore belt have considerable stretch in the west.