The purpose of this paper is to design entrepreneurship model of agricultural extension in the context of agricultural sustainable development. In fact the purpose of this paper is to identify the prerequisite (the influential factors of entrepreneurship), process (development of entrepreneurial program in organization); context (extension perspective in the context of agricultural sustainable development) and outcomes of Entrepreneurship model and determine how this prerequisite, process and context of model influence the entrepreneurship phenomenon and outcomes in the agricultural extension organizations. The statistical population of this study was agricultural extension experts (N=2882). Method of sampling was Proportional Stratified-random sampling method. Questionnaire was employed for data collection. Questionnaire validation was verified by the group of experts and professors of department of agricultural extension and entrepreneurship faculty of Tehran University. A pilot study with the 30 numbers of questionnaires was conducted to determine the reliability of research tools. Cronbochs alpha was computed to assess the reliability of the Questionnaire, its rate being determined as: 0/79 -0/93.  The collected data were analyzed by the SPSS and SPLS software. Results show that entrepreneurship of agricultural extension is a valuable key capability that predicts outcomes of organization in the context of agricultural sustainable development. Also data analysis indicate that every four factors of prerequisites and also process and context of model affect the development of entrepreneurship phenomenon in the agricultural extension organizations, and  also process and context of model influences organizational outcomes positively and directly and indirectly by means of the entrepreneurship.