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Efficiency and productivity are conception that input and output proportions one economic system determine. Data envelopment analysis (DEA) is suitable instrument for calculation efficiency one establishment, but one of the difficulties this model is decision maker can not interment terms of risk and uncertainty in result, in one hand in searches in agricultural sector decision maker hardly with terms of risk and uncertainty confront. Interval data envelopment analysis method (IDEA) a useful instrument in efficiency of evaluation so much establishment take into terms of risk, uncertainty and inexact data. In this search with use of IDEA model provinces of country efficiency in basis animal husbandry in country with consider key input and output in this industry studied. Conclusion say Ardebil province most efficiency and Booshehr province lower most efficiency in basis milky cow-keepers and also Khozestan province most efficiency and Chahar Mahal Bakhtiyari province lower most efficiency in basis fattened cow-keepers in country. Statistics that used in this search it concern five years.