In the present paper there are presented arguments regarding the role of of the Sustainable Public Procurement in solving some problems of social, economic and environmental development, both at national and international level.. To carry out the study, the authors applied traditional research methods: monographic method, document analysis, comparison, trend analysis, and so on. Conclusions resulting from the analysis of documents, reports and case studies confirm the assumption that the public procurement system must take place under conditions of environmental sustainability and social-economic development.