The basic-ultrabasic magmatic rocks are the source rock body of titanomagnetite deposit in this area. The ore body is in the center and marginal part of the rock body. The advantageous wall rocks are Fenggang Formation amphibole plagiogneiss and biotite plagiogneiss. The genesis of this ore deposit belongs to the crystal differentiate-metamorphic type of late magmatic period. According to the prognostication, there is the prospecting potentiality for Fe deposit of large-middle scale in this area.