This search was conducted to focus on the relationship between the type of Taiwanese managers¡¦ politics of downward influence and job performance, with responsible individual correlation, and to influence job performance. The search method this study used was group segmentations. After empirical analysis, we found out: 1. By using K-means ¡§Cluster analysis¡¨, we got three different types of Taiwanese manager¡¦s politics of downward influence. We named them by their downward influence politics and strategies as follows: 1-1 Controlling & Counteracting. 1-2 Reciprocal Networking. 1-3 Exerting Pressure. 2. The relationship between individual variable and the type of politics of downward influence are below: 2-1 Manager to the type of politics of downward influence with gender, age and martial status has no significantly effect. 2-2 Manager to the type of politics of downward influence with the education background, working experience and job level has significantly effect. 3. The relationship between the type of Taiwanese managers¡¦ politics of downward influence and job performance are below. 3-1 Manager of the ¡§Reciprocal Networking¡¨ has better contextual performance than ¡§Controlling & Counteracting¡¨. However, manager of the ¡§Exerting Pressure ¡§doesn¡¦t reveal the difference with the contextual performance. 3-2 Manager of the ¡§Exerting Pressure¡¨ has better task performance than ¡§Controlling & Counteracting¡¨. However, manager of the¡¨ Reciprocal Networking¡¨ doesn¡¦t reveal the difference with the task performance. 3-3 Manager of the¡¨ Reciprocal Networking¡¨ has better job performance than the ¡§Controlling & Counteracting¡¨. Manager of the ¡§Exerting Pressure¡¨ has better job performance than ¡§Controlling & Counteracting¡¨.