Grape is the most important and economical garden crop in sistan area,that has key role in this area ’ s economic. Therefore, according the all factors the produce it, scrutiny about it s efficiency. Also, because agriculture is risky job and this point is important to analyze farmer’s behavior.in this study, efficiency of producing grape with risk has been paid attention. SFA are used to analyze data. In agricultural year of 2009-2010 data gathered by filling questionnaires of 265 farmers in Zabol, Zahak and Hirmand county. The results show the technical efficiency the city of Zabol, Hirmand and Zahak are respectively 83, 77 and 80 percent.Also for the city of Zabol, age, experience, household size, number and size of garden plotsfor city and for city of Zahak, experience,size of household and garden, for city of Hirmand, experience are significant impact on technical efficiency.On the other hand, results of risk analyzing in technical efficiency of land for Zabol and Zahak county was sequence risk-reducing and risk-increasing, rental worker in Zabol county, risk-increasing and animal fertilizer for Zahak and Hirmand county were risk-reducing. The rate of output to scale in Zabol, zahak and Hirmand County was 1.35, 1.18 and 1.34 and all factors (rental worker that was used more than normal in 3 cities is exception) were used by grapeproducers logically and economically. At the end, by paying attention to answers of grape producers about their problems and result of this study, some suggestion was offered to improve efficiency.

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