近年來受到有線電視、衛星電視、網際網路媒體的加入，使得無線電視的收視率與廣告量受到前所未有的挑戰。隨著消費者閱聽習慣的改變，無線電視臺唯有發展數位電視，提供更優質的內容與傳送水準，才能重新吸引閱聽者回攏。本研究採用次級資料法，研究臺灣數位電視的發展，分析目前無線五臺硬體建置進度，以及目前已提供製播內容，同時對有線電視業者、寬頻影音業者等加以比較分析。研究發現，（一）全球各地區雖隨著軟硬體的發展，逐漸完備，但仍存有一些差異，以致於他國之經驗，臺灣無法完全將其技術轉移。（二）頻道內容的規劃，將是數位平臺發展主要核心因素。（三）由其他有線系統業者與寬頻通信業者，所推出的服務內容與方式來看，可預期未來電話線、網路線、Cable線，消費性電子產品將會整合，來傳送訊息給消費者。研究建議，我國數位電視的未來規劃，包括（一）提供更多優質節目頻道。（二）提升影音品質及多媒體加值服務。（三）提高頻譜使用效率。

Due to the cable TV, satellite TV, Internet network join to the media market in recent years, make the audience rating and advertisement amount of the wireless TV receive the unprecedented challenge. With consumers read and listen to the change that used to it, the television station only develops digital TVs, offer the more high-quality content and conveyance level, could attract audiences to come back again. This research adopts the method of secondary materials to study the development of digitization of television station, hardware construction progress and already offer content at present of Taiwan, and then anlayze and prove the different between cable TV industry, Chunghwa Telecom's MOD and wireless TV. The results of this research find: (1) Every area in the world develop the software and hardware of the digital TV completely, but still there are some differences, the experience of other country, Taiwan is unable to totally shift its technology. (2) The planning of the channel content will be the main key factor of digit platform development. (3) With the service content and method offered by the cable TV industry and wired system industry, it can be anticipated that telephone line, network line, Cable line and the consuming electronic product will be combined to convey information to consumers in the future. The advice of this research is that the future plans of our country's digital TV including: (1) offer more channels that have high-quality programs. (2) Improve audio-visual quality and multimedia additional survives. (3) Improve spectral service efficiency.