The study population consisted of 41 institutions from 9 categories which were military, public or private hospital, public or private school, governmental agency, public-operated service industry, public-operated manufacturing industry, privately operated financial service industry, privately operated service industry, privately operated high tech manufacturing industry and privately operated traditional manufacturing industry. The survey started on December 21st2007 and continued until January 11th 2008.We totally sent out 2,133 questionnaires, returned 1,940 questionnaires, the returns-ratio reached 91.0%, eliminated invalid questionnaires were 50, the effective questionnaires were 1,890,effective questionnaires returns-ratio was 88.6%. Data was analyzed by using descriptive statistics, reliability analysis, correlation analysis, exploring factor analysis and level linear model. The major results of this study are as following: 1.Machiavellianism of organizational members has a significant effect on perceptions of organizational politics. 2.Positive affect of organizational members has a significant effect on perceptions of organizational politics. 3.Negative affect of organizational members has a significant effect on perceptions of organizational politics. 4.The degree of centralization has a significant effect on perceptions of organizational politics. 5.The degree of formalization has no effect on perceptions of organizational politics. 6.Organizational hierarchical Level has no effect on perceptions of organizational politics. 7.Organization size has no effect on perceptions of organizational politics. 8.The degree of centralization has no moderate effect on the relationship between machiavellianism and perceptions of organizational politics. 9.The degree of formalization has no moderate effect on the relationship between machiavellianism and perceptions of organizational politics. 10.Organizational hierarchical Level has no moderate effect on the relationship between machiavellianism and perceptions of organizational politics. 11.Organization size has no moderate effect on the relationship between machiavellianism and perceptions of organizational politics. 12.The degree of centralization has no moderate effect on the relationship between positive affect of organizational members and perceptions of organizational politics. 13.The degree of formalization has no moderate effect on the relationship between negative affect of organizational members and perceptions of organizational politics. 14.Organization size has no moderate effect on the relationship between positive affect of organizational members and perceptions of organizational politics. 15.Organizational hierarchical Level has no moderate effect on the relationship between positive affect of organizational members and perceptions of organizational politics. 16.The degree of centralization has moderate effect on the relationship between positive affect of organizational members and perceptions of organizational politics. 17.The degree of formalization has no moderate effect on the relationship between positive affect of organizational members and perceptions of organizational politics. 18.Organization size has no moderate effect on the relationship between positive affect of organizational members and perceptions of organizational politics. 19.Organizational hierarchical Level has no moderate effect on the relationship between positive affect of organizational members and perceptions of organizational politics.