Here, we found that the expression of DCBLD1 was positively associated with the infiltration abundance of eosinophils, iDC, macrophages, neutrophils, NK cells, Tcm, Tgd, Th1 cells, and Th2 cells in the tumor microenvironment and negatively associated with the infiltration abundance of B cells, CD8 T cells, cytotoxic cells, NK CD56 bright cells, pDCs, and Th17 cells. This evidence concerns the gene CD8A and neoplasm.