Abstract
Abstract Telecommunication Technologies Evolution and Deregulation of telecommunication industry in Taiwan has led the industry develop rapidly, since ten years ago. Merge and acquisitions of Taiwan telecommunication happened frequently, the telecommunication market is gradually evolving into an oligarchic state in which the big players grow even bigger. The telecommunication service has been transformed from audio services to data, multimedia services, and cloud services. Increased Customer Demand Drives communication industry based innovation. Telecommunication Technologies Evolution which influences government policy-making process is not a threat but an opportunity for telecom operator. This research adopts the industry analysis tools created by Porter (1980) is employed to analyze the competition history of the telecommunication industry based on the Five Forces Model. Studying past history help us predict the future. This qualitative research, by collecting relevant literature, aims to understand strengths and weaknesses of Chung-Hwa Telecom as well as to propose recommendations of case company's marketing strategies. Key word: Five Forces Model, Marketing strategies, Telecommunication industry