This paper reviewed the relationship among CEO’s entrepreneurship/risktaking, innovation resistance and innovation performance, and the mediating effect of innovation resistance between CEO’s entrepreneurship/ risktaking and innovation performance. Based on the responses from 219 companies, the results of multiple regression analysis appeared as follow; 1) CEO’s entrepreneurship and risktaking effect negatively on innovation resistance. 2) innovation resistance negatively on innovation performance(process innovation, organization innovation). 3) innovation resistance mediates partly between CEO’s entrepreneurship/ risktaking and innovation performance.