One of the obstacles that has caused agricultural sector not to reach significant and expected growth is shortage of short, medium and long–term funds to finance various activities of this sector. This study aims at investigating the economic impacts of credits granted by Agricultural bank on farmers on Hirmand region. The statistical population of the survey included 4691 farmers of Hirmand region and the sample size were 117 farmers who had received loan from agricultural bank at least once during 2006-2011. The Sample was selected using simple random sampling and questionnaires were distributed among them. The results from t-Test showed that significant level for income manufacturing variants was 0.000 and for investment and livelihood variants were 0.014 and 0.077, respectively. This significantly levels suggest that received loan from bank has increased income and production, the living conditions of borrowers, economic profitability and increased productivity.