In this paper, the theory of FDI was applied to analyze integration-responsiveness strategic management of MNCs, and studied successful factors of Japanese MNCs in China from the perspectives of corporation characteristics (ownership advantages and internalization advantages) and environmental factors (locational factors). Based on the 230 responses of questionnaire investigation to Japanese parent corporations, the authors concluded some findings. Japanese MNCs in China prefer to adopt integration strategy. The ownership advantages and internalization advantages are more obvious, the degree of integration is higher. Successful factors on ownership advantages lie on manufacture technology, outsourcing ability of parts, capital power, parent company's investment experiences in China and sales network and skills. Locational advantages lie on several factors, such as labor cost. The relationship between internalization advantages and performance is not obvious.