隨著行動通訊技術的發展，電信業者面臨建設基礎設施的投資大幅增加。網路共享讓業者間可以彼此合作，因此逐漸成為佈建網路時的營運策略。本研究採取深度訪談並納入價值網深刻地探討行動通訊市場上各參賽者對於網路共享的認知，詳細檢視不同業者的觀點與相異處。本研究結果發現，透過共站共構減少基地台數量，可降低民眾反彈的聲浪，新進業者經由網路共享能夠降低投資門檻，而且網路共享能減少新進業者進入市場的障礙，鼓勵各家業者營運重點轉向創新服務，而非網路佈建。行動通訊業者在市場上，除了彼此競爭顧客以外，應該注重納入合作關係，提升雙方的附加價值，如此有助於市場的健全運作。

With the development of mobile communication technology, telecom operators face a substantial increase in investment in infrastructure construction. Network sharing allows companies to cooperate with each other, so it has gradually become a business strategy when deploying networks. This study adopts in-depth interviews and incorporates value net to explore the perception of network sharing among various participants in the mobile communications market, and examine the views and dissimilarities of different players. This study found that reducing the number of sites through co-sited coexistent can reduce the public’s protest. New players can reduce the investment barriers through network sharing, and network sharing can reduce the barriers for new players to enter the market. The operational focus has shifted to innovative services rather than network deployment. Operators in the market, in addition to competing with customers, should pay more attention to the inclusion of cooperative relations and increase the value-added of each other, which will help the health of the market.