2009 年度，臺灣經濟史研究的主流仍是產業史。本文依一般的產業結構分類，分別從一級產業、二級產業以及三級產業來檢視其研究課題和特色。很明顯地，本年度的產業史研究比較偏向戰後和長時期的觀察，且偏重一級產業，三級產業研究則成果偏少，是亟需開拓的領域。本年度產業史研究也發掘了不少新課題。農業史除了過去較重視的稻、蔗作產業之外，包括水果業、蓖麻業、香花產業，已有一定程度的釐清。畜牧業史首度出現學術專文。工業史部分，則沈船打撈業是新議題；機械工業、IC 產業均有延續性的研究，並嘗試與過去研究成果對話，較有突破。另一方面，從技術變遷角度來看產業史的發展，則頗受關注，如稻作品種和技術的長期變遷、鴉片製造等。特別是戰前至戰後，或是日治至民國時期跨政權下臺灣農業、工礦業的連續和斷裂，近來極受到重視，本年度也有不錯的表現。總之，2009 年度臺灣產業史之總體研究，不但開闢不少新議題，而且有些研究也相當有突破，而加深、加廣了臺灣產業史之成果。然而，早期和清代研究趨於停滯、史料運用和學生習作所產生的問題或反映的意義，仍有待關注。

The main stream of Taiwan economic history studies still is business history studies in 2009. This paper divided three parts includes the first -level industry, second-level industry as well as third-level industry in order to discuss the topics and characteristics of Taiwan
business history studies depending on its industrial structure. Obviously, the business history studies stressed on the first-level industry, but the third-level industry research is less and need to explore more.The business history studies of 2009 focused on postwar and long time period; also discovered lots of new topics. Agriculture studies except for rice and sugar industry, fruit industry, castor-oil plant industry as well as fragrant flower industry have defining clearly. The academic study of animal husbandry history appeared the first time. As to
industry history, shipwreck salvages industry is the new subject;
engineering industry and IC industry were continuous research and conducted dialogue with previous research.On the other hand, from technical transformation angle to discuss the development of business were so popular, such as cultivated variety of rice, the long run transition and opium production. Especially, the continuous or break of Taiwan agriculture, industry and mining between prewar and postwar or Japanese colonial period and ROC period were very important issues recently.In sum, the Taiwan business history studies in 2009 not only set up many new subjects but also have made a breakthrough. Then, it deepens and adds broadly the achievement of Taiwan business history. However, the stagnation of early periods and Qing dynasty history studies, the problem of historical resources utilization and students exercise still need to pay close attention.