Background: Managers of organizations to comply with ethical standards and commitment to Psychological contracts in organizations can have significant impact on perceived job security, and have organizational trust. Therefore, this study aims to predict perceptions of job security and organizational trust through ethical leadership and adherence to psychological contract is carried out.

Method: Currents study is a correlation research. Population of study includes all of staffs in Isfahan Company. Sample includes 210 participants that they were selected as in access group. Data accumulated by questionnaires. Data were analyzed by Pearson correlation and step by step regression.

Results: Results showed that there are significant relationship between ethical leadership and perceived job security and Also between adherence to psychological contract and organizational trust, (p<0.01). In addition, the findings of the stepwise regression analysis showed that ethical leadership predict 24 percent of the variance in perceived job security and adherence to the psychological contract. It also predicts 4.9% of the variance organizational trust.

Conclusion: The results of this study suggest that organizational trust increase through ethical leadership, perceived job security, and through adherence to psychological contract. The predictive power of ethical leadership is more powerful than adherence to psychological contract.