Abstract
Studies of human resource and crosscultural management are gaining greater attention in international markets. In response to this trend, for multinational enterprises, understanding of the culture and values of other countries as well as their organizational citizenship behavior (OCB), which focuses on members' positive interactions for better achievements in organization, has gained importance. This study aims to explore the effects of national culture and guanxi on the OCB in Chinese society including mainland China and Taiwan. The results reveal that national culture and guanxi have significant impacts on the OCB, and people in mainland China and Taiwan have different cultures and OCB of their own