The purpose of this study was to assess the factors influencing the quality of credit services by funds for supporting agricultural development. This is an applied research with descriptive/correlative and survey methods. The research population consisted of all 215 managers of these funds. A questionnaire was prepared to collect the information, and data was analyzed by using the SPSS soft ware. The results of the correlation indicated that there was a positive relation between independent variable of quality of credit services and mutual respect among associations and fund, participation of associations in the funds activities, diversifies range of membership, awareness of the members and funds managers, initial capital of the funds, the government and associations capital in the funds, increasing capital of the funds, duration time and amount of facility payment, kind of facilities, proper assessment of customers, management of the funds by associations, the educational level of the fund's managers, experiences of the fund's managers in agricultural sector, working experience in agricultural associations, monitoring and consultative role of holding company in fund, ease in payment and supporting of associations during crises as dependent variables. The results of multiple stepwise regression shows that on time service payment, ease in payment, mutual respect between association, and duration time of their management in agricultural sector predicated 40 percent of dependent variable.