The purpose of the present study is to investigate the effect of outsourcing the activities of government agencies on organizational structure. The current study is a descriptive-survey research implemented by the field method. The statistical population of the study consisted of managers of governmental organizations of Isfahan province. The questionnaires were distributed based on simple random method among the members of the statistical sample. Data collection tools were two questionnaires including: 1) activity outsourcing standard questionnaire (Rahnavard, 2008); which was adapted by McLauour (2008) outsourcing matrix; 2) Robbins organizational structure standard questionnaire. Descriptive statistical methods, factor analysis technique and structural equations were used to analyze the data. Based on the findings of the research, the amount of path coefficient between activities outsourcing and organizational structure is .54; this number is .42 for outsourcing activities and formalization, .41 for activities outsourcing and concentration and also, .42 for outsourcing activities and complexity, which indicates the high impact of the variable on the related dependent variables. According to research findings, in order to realize the activities outsourcing, the organizational structure should be designed commensurate with environmental changes and also, improving the managers' knowledge should be considered as an important factor in this regard. تفاصيل المقالة