The Purpose of this survey was to research the major factors affecting the tendency of greenhouse producers towards organic production in Tabriz County. The statistical research population involves all greenhouse owners in Tabriz county (N=70). The necessary data were collected using questionnaires, after that the validity and reliability of questionnaire was approved by the academic members of the scientific board, and its validity was justified through alpha Cronbach (0.74<α<0.83). The results of this study indicated that the participant greenhouse owners showed positive attitude towards organic agriculture, and revealed high tendency towards producing organic greenhouse products. Moreover, the results of stepwise multiple regression indicated that, among the all investigated factors, the eight factors namely “Being notified over the negative outcomes of using chemical fertilizers and pesticides”, “contact with agricultural promoters and experts”, “age of greenhouse owners”, “participation in the organic related educational-promotional sessions”, “Education”, “Attitude towards organic agriculture”, “Acquaintance with organic agriculture” and “the experience in the greenhouse production” can explain around 61% of the changes in the variance of the tendency of greenhouse producers for organic production.