This study analyzed the effect of small maufacturing businesses’ company culture on organizational performance. The study results showed that personal culture(one’s organizational commitment) positively affected job satisfaction and improving creativity. Organizational culture(harmony of organization) and environmental culture(importance of environmental factors) didn’t significantly affected organizational perfirmance. Also, organizational commitment was varied by employee’s position, harmony of organization was varied by age, education and continuous service year, job satisfaction and creativity was varied by education. This study provided implications for analyzing the importance of personal·organizational·environmental factors and dicovering individual diffrences of the employees.