Xxxxxxx Xxxxxxxxx Psikolojik Sözleşme, Örgütsel Bağlılık. Abstract: We can describe pyschological contract as “It is a unique individual mental expectation pile which is forming about contracting sides (worker himself/herself and organization) obligations with perceiving and interpreting written, spoken, behavioral and attitudal messages in worklife relationships. We can describe organizational commitment as “It is the three expectation sum of organization needing from worker: affective commitment, continuance commitment and normative commitment. In this dissertation, we study on relationship between psychological contract and organizational commitment. Questionary of the study put into practice on 339 test subject on medical worker people in Erzurum city of Turkey. As findings from the datums are proved that there is a pozitif strong relationship between psychological contract and organizational commitment. Key Words: Psychological Contract, Organizational Commitment.