The aim of this thesis is to investigate and identify the present communication gaps between cultures within an organization. For these couple decades, there has been numerous international joint ventures happening in China by the Taiwanese firms in order to reduce cost and to reach both economies of scale and economies of scope. In doing so the international joint venture firm has to hire and employee the local Chinese people where the culture is much different than Taiwanese people. This thesis studies and examines the possible communication issues and problems that could arise due to differences in culture. The qualitative method of interview was conducted in this thesis, composed of 5 Taiwanese managers and 3 Chinese managers inside the organization. The interview consists of 19 questions which were divided into three categories as follows: Communication, differences between ethnicity, and leadership and change. The responses were carefully examined and compared to see whether the difference in culture created some communication issues in the organization. The results from the interviewees and through chart comparison it was clear to conclude that there indeed have been communication issues and problems between the Taiwanese culture and Chinese culture at the workplace. The thesis provides four types of recommendation, including conflict management, internal communication and employee development, management communication strategy for change and strategic employee communication to facilitate major change. This thesis hopes to offer and improve a successful communication change between the different cultures within the organization.