TQM has been applied to the industry area regardless of the size of company. BNQA model should be identically applied to large companies and small & medium-sized company. However, there are many evidences that TQM model should be modified according to the size of company. In this study, we analyzed the practice of TQM in Korean small & medium-sized Company. Also, we tried to give some suggestions for improving the competitiveness of the small & medium-sized company. The result of this study is that leadership, work system, education and strategy development should be improved in domestic companies, and work system, education and strategy deployment should be improved in foreign companies.