Taiwan was once world-known for its ¡¥Economic Miracle¡¦ while it was politically stabilized, socially peaceful and securely maintained. After the government lifted martial law in 1987, Taiwan initiated ¡¥Political Democratization¡¦ and direct presidential election. No matter how prosperous our economy is or how free our democracy is, a secured environment that is free from fear or intimidation takes priority over everything. As the guardians of the people, the police act as a bridge between the government and the people, and bear the responsibility of publicizing government decree. The National Police Agency, which is the subordinate to the Ministry of the Interior, is the supreme organization in charge of all police functions in Taiwan. The population of police force at present is around 70,000 and 60% of them are rank and file officers. This study has taken the rank-and-file police officers of Kaohsiung County Police Bureau as a case to analyze the relations among ¡¥Job Involvement¡¦, ¡¥Job Stress¡¦, ¡¥Job Satisfaction¡¦, and ¡¥Turnover Propensity¡¦. A questionnaire has been made with 41 questions in it to make a research according to the items of frequency analysis, intersection analysis, and correlation analysis. There are ten discoveries in the conclusion considered correspond with the correlation research made by overseas or domestic scholars, besides, they are similar to the police ecosystem of Taiwan on the whole. But there are still some variables, such as organization climate, organization acceptance, growing requirement and personality characteristic that affect a person¡¦s resignation. Although research has been made on different profession and group by domestic and overseas scholars, it can also be made on the police to approach whether there is ¡§sameness in difference¡¨ or ¡§difference in sameness¡¨.