A Lactobacillus paraplantarum CK401 having an antiviral effect, and more specifically to novel kimchi-derived microorganism Lactobacillus paraplantarum CK401 having inhibitory activity against influenza viruses, particularly avian influenza virus, and the use thereof. According to the present invention, any one or more selected from the group consisting of Lactobacillus paraplantarum CK401 KCTC 13287BP, a culture fluid of the Lactobacillus paraplantarum CK401 KCTC 13287BP, and a retentate of the culture fluid on a membrane filter having a molecular weight cutoff of 10 kD, have excellent antiviral activity, and thus may be usefully used for drugs, foods, fermented products, food additives, health supplements, feeds, feed additives, etc.
