As strategic and critical minerals, rare earth elements and yttrium (REY) have long been of great concern. In recent years, previous studies have reported that numerous sedimentary manganese (Mn) ores are significantly enriched in REY (> 500x10-6). However, the provenance, carrier, and enrichment process of REY in sedimentary Mn ores still lack precise constraints. It is noteworthy that the significant enrichment of REY in the Zunyi Mn deposits has been discovered through careful compositional analysis. Specifically, the average ∑REY content in the ores and the underlying tuffaceous clay is 693.97×10-6 and 1464.54×10-6, respectively, which is mainly characterized by the enrichment of La, Ce, Nd, and Y, and is the first reported REY-bearing carbonate Mn deposits in China. The macro and micro mineralogical composition, symbiotic and intergrowth relationships, and REY differentiation highlight that the enrichment of Mn and REY primarily originates from the magmatic-hydrothermal system of the Emeishan Large Igneous Province (ELIP). The REY in ores and tuffaceous claystones mainly occurs as monazite, xenotime, and goyazite, which indicates that phosphate is the main carrier of REY in Zunyi Mn deposits. Of note, monazite and xenotime are mainly fine-grained (<10μm) anhedral particles form, coexisting with authigenic minerals (e.g., rhodochrosite and capillitite), and closely symbiosis with residual Fe-Mn oxides and altered tuffs in rhodochrosite. Meanwhile, goyazite appears in microcrystalline or colloidal form, closely symbiosis with fine-grained minerals (e.g., illite and quartz), and locally coexisting with residual altered volcanic debris. In conclusion, we suggest that REY enrichment is controlled by ELIP paleostructure-magma-hydrothermal activity, multiple carriers, and multiple sedimentary stages, therein REY initially occurs in Fe-Mn oxide and tuff, subsequently transfer to phosphate minerals during early diagenesis-alteration process.