Nowadays, issues such as global climate change, poverty and inequity, and the unsustainable use of resources are driving organizations to incorporate the principles of sustainable development into projects. Sustainable development of organizations and companies requires consideration of all three sustainability dimensions: environmental, economic and social should integrate economic, social and environment benefits in projects. Therefore assessment and evaluation of projects success in sustainability can specify policies and procedures of the organization to achieve the final goals in organization future. The purpose of this study is to establish a systematic method for assessment of effective factors on success of sustainable project. Suggested method will enable that evaluate success of project to meet requirement of sustainability. This method focused on five aspects of sustainability and nine knowledge areas of project management. Steps in this method lead framework of assessment sustainability in projects. Data is gathered by interview from experts and is used analytic hierarchy process (AHP) technique to ranking of effective factors. All of steps are prepared according to the conceptual model. The adequacy and reliability of the model was tested with a pilot study. Manuscript profile