汽車貨運業一直以來都為台灣的經濟帶來極大的貢獻，雖然之前相關的研究提供了這個產業許多價值，但是目前還沒有是針對汽車貨運公司主要所載的商品來做研究，如此的把所有汽車貨運公司一視同仁忽略了承載不同的商品有不同的競爭程度的事實，倒置這些研究所提出來的架構無法解釋許多這個產業裡發生的現象。 將會焦點放在承載鋼鐵的汽車貨運公司，這份研究延伸策略管理的相關文獻來了解這個產業的運作，以質性研究之案例研究法來了解是什麼因素影響了公司表現、公司行為，以及產業所衍生的問題。研究發現產業的狀態，公司所擁有的資源，與正式和非正式的制度錯中交雜的影像了產業間的行為與競爭程度，所以管理者應該避免過度專注於某一層面的策略，他們應該在擬定策略時考慮到策略管理中的產業基礎理論、資源基礎理論、與制度基礎理論。 / The trucking industry has been a major contributor to Taiwan’s economy for decades. Previous research concerning strategic management practiced in the industry, while insightful, did not pay enough attention to the specific commodity primarily carried by trucking companies. The generalization that all trucking companies carry the same commodity neglects the fact that competitive intensity varies considerably within the industry depending on the commodity carried. Consequently, many phenomenons could not be explained using frameworks from previous researches. This study concentrates on trucking companies primarily carrying steel and extends various disciplines from the strategic management literature to the trucking industry. Using the qualitative method of case study, this research attempts to understand the underlying drivers of firm performances and behaviors in addition to challenges faced by the industry. The findings suggest that industry conditions, firm resource portfolio, and formal and informal institutions collectively affect the behaviors and competition in the industry, therefore managers should avoid focusing on a single strategy and bear in mind the industry-based view, the resource-based view, and the institution-based view.