In the Upper Permian base ferro- aluminous rocks, coal seams (C1) and the top and bottom carbonaceous clay rocks of the coal seam, the horizon of super enrichment critical metals REY, Nb, Zr and Li were found from northern Guizhou. The average contents of REY, Nb, Zr and Li are 807×10-6、143×10-6、1107×10-6、375×10-6 respectively, in ferro-aluminous rocks. The average contents of REY, Nb, Zr and Li are 555×10-6、104×10-6、786×10-6、116×10-6 respectively, in the top and bottom carbonaceous clay rocks of the coal seam. the discovery shows that the horizon has good prospecting prospects for critical metal deposits in this area.