The geological characteristics and ore-controlling factors of sedimentary bauxite deposit, ore structure and ore structure in lower members of the Upper Permian Unified Heshan Formation in the Pingguo area are studied in this paper. The ore bodies are mainly stratified, and the mineral composition is mainly diaspore and clay minerals, etc. The ore structures are mainly a clastic structure, metasomatic structure, fine pyrite structure and autotype-semi-autotype, and the ore structures are tetragonal, oolitic, earthy or semi-earthy, sand-like and dense massive. The main ore-controlling factors of ore-bearing rock series are structure ore-controlling, base rock ore-controlling and pale topography controlling ore-body distribution.