Basic purpose of WCM is continuous improvement in all areas of production in order to guarantee the quality of the final product and meet customer expectations. Projects developed under the WCM methodology which rely on a high level of employee involvement – target the elimination of all forms of waste and loss with the ultimate objective of achieving zero accidents, zero waste, zero breakdowns and zero inventory. In Chapter 1st describe the general Introduction on human resource development. Chapter 2nd describes the difference between traditional and lean manufacturing and different tools of lean manufacturing. (SMED, 5S, 7 Wastes, 4M, 5W1H, Root Cause Analysis, Heijunka, Kanban, Kaizen, Just In Time, Continuous flow, PDCA ).