ABSTRACT 
The research descript how aspect of the knowledge creation influence organizational performance in economic faculty of Islamic University of Indonesia. Objective of this research is to find 1). The influence of Sozialication (X|) to organizational performance's. 2) The influence ekstemalization (X2) to organizational performance's. 3) The influence of combination (X3) to organizational performance's. 4) The influence of internalization (X4) to organizational performance's. 5) the most dominant of aspects of the knowledge creation to organizational performance's in Economic Faculty, Islamic of indonesian University. 6) the difference between characteristic of the employees (gender,age, jobstatus,education, long ofjob).Therespondances oftheresearch are educatif employees and administratif employees. The research use quetionnaire interview and the tecniques data analisys is used descriptive analysis and quantitative analysis. 
The result of the research shows that only one is positive or significant influence aspects of the learning organization: Ekstemalization (X2), to organizational performance's in Economic Faculty, Islamic University of Indonesia. And the most dominant aspect of the learning organization. And there is no differencial organizational performance's in Economic Faculty, Islamic University of Indonesian on characteristic of the employees . 
Keywords: Knowledge Creation, Ekstemalization. Organizational performance's 
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