本發明係關於一種具免疫調節機能的植物乳桿菌(Lactobacillus plantarum) CNU091、含有CNU091之組成物及其用於製備活化巨噬細胞組成物之用途; CNU091係以登錄編號BCRC 910732保存於生物資源與保存研究中心(BCRC);藉此,本發明具免疫調節機能的植物乳桿菌可達到活化巨噬細胞等具免疫調節之功效。 The invention is related to animmunomodulatoryLactobacillus plantarumCNU091、a composition comprising the immunomodulatoryLactobacillus plantarumCNU091 and a use of the immunomodulatoryLactobacillus plantarumCNU091 for manufacturing a composition for activating macrophages. The immunomodulartoryLactobacillus plantarumCNU091 is deposited at Bioresource Collection and Research Center Accession with a deposit? number? BCRC 910732. Accordingly, the immunomodulatoryLactobacillus plantarumcan achieve effects of immunomodulatory such as activating macrophages.