Introduction: Providing a suitable work condition to attain common personnel and organizational goal, is one of the most important management's duties. There is no doubt that increasing management job motivation is important to achieve quality and quantity organization performances. Present study evaluated the impact of reducing motivations on managers, Job performance at Isfahan University of Medical Sciences.

Methods: Present research is a descriptive comparative study carried out. Data have been collected by questioners Included all Isfahan University of Medical Sciences mid operational managers. Sampling method was random and based on pilot study the number of the sample subjects defined 78 people.

Results: Results showed that material reducing motivator's elimination had fewer effects on mid management however it had better effect on upper average level management.

Conclusion: Influencing factors on job motivation process determined by personal values. So care must be taken to extend finding of present study to other re search popolations.