Abstract Because of the global competition, the work in a position becomes complex and needs to cooperate with others now. In a team, everyone with different characters has to use his or her ability to assist a team in finishing the mission. Actually the cooperative relationship between Taiwanese and Japanese companies is quite close. No matter the business companies or the educational groups have got to rely on multinational cooperation. But the managerial philosophy of Japanese teams and Taiwanese ones is very different. This research expects to compare the different behaviors between the students¡¦ corporations in Taiwan and Japan, which hope to find out the causes to cooperate with each other. That could be a reference for the teamwork of Taiwan and Japan. This research is based on Taiwanese and Japanese students¡¦ team behaviors. The goal of it discusses whether the organizational character and the process of its performance are different or not. According to the thesis of national and foreign educators, they focus on teams¡¦ participation, process and production, and mention a conceptual framework based on the organizational character, implementing process and team¡¦s performance by the independent variable of organizational character, by the intermediary variable of team implementing, and by dependent variable of team performance. This research interviewed the students of commercial and managerial department in Taiwan and Japanese by the way of questionnaire. To analyze 214 valid copies (78 copies from Taiwan, and 136 copies from Japan) reaches a conclusion: it is related between team organizational character, team implementing, and team performance. In the aspect of team performance, it also reveals that working design, mutual relations, and social support affected group performance between Taiwan and Japan very much. Conclusions: 1. Each team needs variable kinds of members, such as ones who are creative, are capable to analyze questions, are good at communicating, or are gifted to implement. Thus, in order to arrange a team with the best performance, it should analyze members¡¦ personality, which can let members have appropriate positions, and predict each member¡¦s different behavior. 2. Both of teams in Taiwan and Japan quite emphasize on what members design at work, and on which level to participate activities. In fact, there are two aspects to consider for working design: profession and spontaneity. Working design is considered to combine the different levels of profession and spontaneity, because those professional factors, like the variety of skills, the integrity of missions, or the meanings of missions, etc. influence the common sense of meanings of working. Furthermore, the spontaneity affects members¡¦ responsibility at work. 3. This research uncovers that the teamwork in Taiwan is effective than that in Japan, because Japanese students pay attention on the coordination of other¡¦s, and Taiwanese students emphasize on the entire group¡¦s interaction instead. Even though Taiwanese members consider that it is prior to finish missions, this research also figures out that the influence of social support, such as working atmosphere, psychological aspect and relations are also quite important. 4. In order to overcome problems to cooperate caused by different nations and background, the members can receive diverse trainings of social relations, or conflict management. To establish the positive atmosphere to communicate and to strengthen believes between members can help inspire teamwork¡¦s implementing and creativity. Teamwork is not a cure-all, so it should understand why a company needs teamwork. Nowadays Japanese companies in Taiwan need Taiwanese managers to increase their competitions. The question is how to arrange them to reach the best performance, not how to let a teamwork implement. Thus, only when effectively to use Taiwanese managers can teamwork perform very well. In conclusion, this research can provide the difference of conception of teamwork between students in Taiwan and Japan, and the causes that members have to conquer and strengthen in teamwork.