Background: Some researchers have argued that job satisfaction has been vaguely defined in the organizational literature. Also, there is a lack of consensus over the meaning of job satisfaction in literature. The aim of this study was to clarify dimensions of job satisfaction's concept based on a systematic review study. Materials and Methods: The present study used a systematic review to clarify job satisfaction's concept. Some databases including Pubmed and Medline were searched, carefully using proper keywords. A total of 38 articles were reviewed, all were published between 1986 and 2009, with the majority being of quantitative nature and design. Data on the following items were extracted: country, setting, subjects, the definition of job satisfaction, theoretical background for measuring job satisfaction and the dimensions of job satisfaction. Results: The results of this study showed that job satisfaction has been born in mind both conceptually and operationally. In both aspects, job satisfaction was assumed to be influenced by personal and organizational dimensions. The main focus was on identifying and controlling different factors to provide job satisfaction for individuals. Yet, individuals' contributions to satisfy themselves were ignored. Conclusions: We explored that job satisfaction is a multi dimensional concept. This contains individual abilities, attitudes, beliefs and value system. To achieve job satisfaction, it is important that the staff have the characteristics of positive feelings and attitudes, commitment, and responsibility.