Introduction: Creative and innovative hospital administrators are needed for the of hospitals survival and success It is necessary toidentify the influential factors affecting administrator's the if such administrators are to be trained.

Methods:This cross-sectional study was carried out during the spring of 2004. The research population included 66 senior managers including hospital administrator hospital manage horsing supervises in cluding hospital administrator pospital mana, hursing supervisors of 22 hospitals in Esfahan. Data were collected on the basis of a questionnaire wichits validity and reliability were confirmed. The collected data were analyzed by SPSS program using Kolmogorov - Smirnov, Mann-Whitney U,Kruskal Wallis, analysis of variance and T tests.

 Findings: The most important influential factors on administrator creativity were organizational elements with mean score of (16.25 ± 2.35). The most important influential factors of manager's innovation were personal factors with mean score of (17.87±3.10).

Results: Designing an appropriate reward system is required to improving hospital administrator's creativity. Also, hospital administrators should improve their professional capacity through education and training.