Background:  Since the evolution in the scope of nursing practice, there has been greater autonomy for nurses and a growing demand for expanded critical thinking and problem-solving abilities. Aim: This study aimed to find out the relationship between the critical thinking disposition of nurse managers and their problem-solving ability in Port - Said hospital Research design: A descriptive correlational design. Setting: the study conducted in two different sectorial hospitals; ministry of health and health insurance hospitals in Port -Said. Subject: this study included 103 nursing (63-nurse manager working at the ministry of health hospitals and 40-nurse manager at health insurance hospitals). Tools: California Critical Thinking Disposition Inventory and Problem– Solving Questionnaire sheet.  Result:   the relationship between the disposition of the nursing manager toward critical thinking and problem-solving ability was statistically significant (FEP= 0.006). Conclusion: the majority of nurse managers (95.1%) had a negative disposition toward critical thinking also the majority of them (97.1%) had low problem-solving ability Recommendation: Conducting training programs to enhance nursing manager critical thinking disposition and the ability to solve the problem.