Nowadays Supply chains are highly vulnerable and prone to various risks due to the geographical expanse and the complexity of communication networks. Sustainability in supply chains is increasingly seen as part of supply chain management. sustainability has become a necessity and every supply chain needs sustainability. However supply chain have the breadth and complexity of indicators. This purpose of this paper is to provide a model for was designed to evaluate the impact of the sustainable supply chain on organizational performance and Efficiency in the National Iranian South petroleum Company .This study consist of two quantitative study and qualitative stage by designing several questions and using a mix research method. In the qualitative stage using grounded theory methods following a systematic review of the literature on sustainable supply chain management and its adaptation to the local needs of the sustainable supply chain in the country oil industry. The statistical population of the research included all employees of the NISOC with an unlimited number, of which 384 subjects were randomly selected as samples. In this study, a questionnaire was used as the data collection tool. The questionnaire designed in this research is based on a 5-point Likert scale. . the research hypotheses were tested using SmartPLS software. According to the results, the organizational performance and efficiency in the NISOC are affected by the variables of green supply chain, industry supply chain, macro policies, socioeconomic factors, organizational factors, political factors, technology, manufactured products, customers, and supply chain failures .