As strategic and critical minerals, rare earth elements and yttrium (REY)have long been of great concern.Recent studies have reported that numerous sedimentary manganese (Mn)ores are significantly enriched in REY (> 500×10-6). However, the source, carriers, and enrichment process of the REY in sedimentary Mn ores remain poorly constrained. Notably, careful compositional analyses have revealed substantial REY enrichment in the Zunyi Mn deposits. Specifically, the average ΣREY content in the ores and the underlying tuffaceous clay is 658×10-6 and 1465×10-6, 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 lower ore- bed developed hydrothermal brecciated Mn ores, and monazite veins crosscut rhodochrosite were observed in Mn ores, and coupled with Mn ores has REY fractionation characteristics similar to the underlying tuff, indicate that the enrichment of Mn and REY primarily originated from the magmatic- hydrothermal system of the Emeishan Large Igneous Province (ELIP). The REY in Mn ores and tuffaceous claystone mainly occurs as monazite, xenotime, and goyazite, indicating phosphate minerals as the principal REY carriers in the Zunyi Mn deposits. Monazite and xenotime are mainly fine- grained (<10 μm)anhedral particles form, coexisting with authigenic minerals (e.g., rhodochrosite and capillitite), and closely symbiosis with residual Fe- Mn oxides and altered tuffs within 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 the REY enrichment was controlled by ELIP paleotectono- magma- hydrothermal activity, multiple carriers, and multiple sedimentary stages. REY initially occurs in Fe- Mn oxide and tuff and then transfers to phosphate minerals during the early diagenesis- alteration process.