Lean manufacturing is a proper technique to identifying and eliminating waste through continuous improvement. In lean manufacturing do more with less: time (production time, waiting time etc..), inventory, men, and money. At present time, Lean Manufacturing has become a worldwide technique. It is very successful in drawing the attention of companies of all sizes. Many organizations are following Lean technologies and experiencing drastically improvements in quality, production, customer service, and profitability. Process improvement is an iterative method of seeking the elimination or reduction of non-value adding work embedded in a process. Non-value-adding work is described as elements of work that a customer is unwilling to pay for. The Lean manufacturing technique is meant to convert non-value added activity into value added activity. Lean manufacturing has its effect on the manufacturer and the customers alike. A lean organization understands customer value and focuses its key processes to continuously increase it. The ultimate goal is to provide perfect value to the customer through a perfect value creation process that has zero waste.[2] This paper gives the literature survey on various type of industry to apply the lean manufacturing. And introducing about lean .what is lean manufacturing, why it is needed, and method of lean manufacturing that reduces waste. And also to introduces about different lean tools.