Astract The purpose of the research aims at exlporing the relationship of organizational ethical climate, the principles of medical ethic and the performances of medical behavior and hope to get some findings that will benefit the managers and decresae the medical disputes. The major findings are summarized as follows: 1. The more health care workers pay attention to the principles of medical ethic of nonmaleficence¡Bautonomy and beneficence, the better the performances of medical behavior are. 2. The more health care workers emphasize the importance of the principle of medical ethic of justice, the less the breakout of injustice. 3. The more hospitals put emphasis on the importance of climates of law and code¡Bcaring¡Brules, the better the performances of medical behavior are 4. While Instrumental climate is obvious, the outbreak of the injustice is easier. 5. Compared with others technicians, administrants, and nutritionists, doctors and nurses feel less the climate of caring. 6. The higher the climates of law and code¡Brules that hospital managers conducted are, the lower the climates of caring and instrumental are. 7. Those who are seniors show the climates of law and code¡Brules more, while those who are older also show the climate of the rules.. 8. The invasion of autonomy in the climate of performances of medical behavior is the most serious. 9. Those health care workers with a bachelor¡¦s degree feel less the climate of law and code.