Background & Purpose: Staff readiness and acceptance for the implementation of organizational transformation plans is a basic prerequisite. In this study, the effect of transformational leadership and transparent organizational communication on the openness of employees to accept change with the mediating role of organizational trust has been investigated.
Methodology: This is an applied  and descriptive research. The statistical population consists of managers and staff of the Social Security Organization of Tehran, from which 269 people were selected randomly. Data were collected using a questionnaire and analyzed by SPSS and .
Findings: Transformational leadership and organizational trust have a positive effect on employees' openness to change acceptance. Also, transformational leadership and transparent organizational communication have had a positive effect on organizational trust. The indirect impact of transformational leadership and organizational communication on employee openness to change acceptance through organizational trust has also been acknowledged. But the direct effect of transparent organizational communication on the openness of employees to change acceptance was not significant.
Conclusion: Developing transformational leadership and transparent organizational communication can increase employees' awareness of the desired organizational transformation plan and their willingness to participate in its advancement.