Lithofacies paleogeographic sedimentary environment of Daye bauxite mine area in Dengfeng County, Henan Province was coastal lagoon between ancient island heights in the Early period of Late Carboniferous Epoch. During weathering and erosion for 160 Ma Fe-Al-Si-bearing calcareous lateritic crusts were formed at the erosion surface of carbonate rocks. In the late period of Late Carboniferous Epoch flysch sedimentary formation of paralic facies deposited and buried the above mentioned bauxite deposit. Bauxite ore prospecting in future should target at shoal-shallow lake facies (belt), the completely developed aluminiferous rock sequence, and the thick and stable aluminiferous rock sequence. In addition, attention should be paid to supergene enrichment of the aluminiferous rock sequence.