Green Purchasing is responsible purchasing going beyond price and volume. In global market economy stock listed, responsible companies are expected to be transparent and manage their reputation. Transparency calls for responsibility and co- operation of all players in supply chain. Environmental standards apply for all operations everywhere and throughout the supply chain. Responsible purchasing is hard work and requires systematic auditing and controls. The most uniformly successful way to promote improved environmental performance is through the supply chain. No supplier will ignore a justified request from an important buyer who wants to know about the supplier's environmental performance, and such requests demonstrate to suppliers that there is a serious market reason to achieve improved environmental performance. There are a small but growing number of companies that have demonstrated that buyer-supplier collaboration on environmental issues results in better economic as well as environmental performance for both parties. Lessons from these experiences should be examined and disseminated Widely to business as a means for improving environmental management practices. Multinational and arge companies and governments have a number of opportunities to promote green purchasing and to take advantage of the trends in globalization to improve the environmental performance