This studies were carried out to investgate the effects of omija (Schizandra chinensis) extracts(OE) on the growth of lactic acid bacteria (LAB, HYO-1 and HYO-2) isolated from home-made kimchi. The growth of isolated LAB was inhibited apparently in modified MRS broth containing 1% or 2% of OE. The growth of isolated LAB was inhibited by pH control with HCI to 4.3 or 3.7, the same pH of modified MRS broth containing 1% or 2% of OE. The strong growth inhibitory properties against isolated LAB were shown by fumaric and itaconic acid among various organic acids of Schizandra chinensis, such as citric acid, malic acid, lactic acid, fumaric acid, itaconic acid and acetic acid. The isolated LAB were indentified as Lactobacillus plantarum.