Abstract: Expatriation in multinational corporations (MNC) is a process that expatriates transfer the knowledge from the subsidiary company to the parent company with interactive learning activities between expatriates and the parent company. Social capital of expatriates and organizational knowledge transfer mechanisms can influence the learning process. The mechanism of reverse organizational learning organizational learning is consisted of the corresponding learning process, influencing factors and support systems. In the process of enterprises internationalization，China MNCs should give attention to the process of reverse expatriate knowledge transfer, and develop its knowledge absorptive capacity and the ability and willing of expatriates.

Key words: multinational corporations, knowledge transfer, expatriation, organizational learning