Expatriates working in a foreign environment with very different political, cultural and economic conditions often face both job-related and personal problems, which may lead to expatriate dissatisfaction. ¡@Previous research suggests that if expatriates are not satisfied while on assignment, the motivation to perform well and/or to remain abroad for the specified length of times is diminished. As a result, this study tries to do investigations to Taiwanese expatriates in China to experiment if certain determinants (training, mentoring, repatriate positing, long-term career planning, environmental factors, and individual career management strategies) can lead to expatriate job satisfaction. The result of this study suggests that among corporate career development plans, training and long-term career planning can facilitate expatriate job satisfaction, while mentoring and repatriate positing have no significant influence on job satisfaction. Besides, environmental factors and individual career management strategies both have significant positive effect on job satisfaction. This gives multinational companies (MNCs) some inspirations: -MNCs should do some investigations to previous expatriates to figure out the problems they¡¦ve encountered and design corresponding training programs for new expatriates. -MNCs should select expatriates with positive attitudes towards expatriate assignments or train their expatriates to become more problem-focused. -MNCs should help expatriates plan their future career paths. -MNCs should design sound mentoring and repatriate positing policies for their expatriates. -MNCs should make the environments surrounding expatriates become as benevolent as possible.