2009年中國大陸正式超越德國，成為全球最大出口國，顯示中國大陸在國際貿易市場的重要地位，而天津市以16.4%經濟成長速度成為2011 年中國大陸各省區中，經濟增長最快速的城市。同時，也為英國《經濟學人智庫》2012年公布全球最具經濟競爭力城市。中國大陸傳統產業升級，天津市經濟轉型成功，以及天津市具有沿海的外貿地緣及資源優勢，外貿帶動經濟發展前景不容小覷。 本研究針對天津市外貿及觀察各類出口產品結構變化，以SITC國際貿易標準分類，以顯著性比較利益法及波士頓矩陣分析，探討天津市各項出口產品的比較利益分析。 此外，本研究利用實證模型分析影響天津整體出口額之因素中，將各項自變數分類為要素因素、外部拉動因素以及金融因素之三大影響因素，研究方法先以進行單根檢定（unit-root test），確定變數資料成為定態(stationary)，再以迴歸分析方式，藉此檢驗各項變數與天津外貿之間因果關係為何。 / China overtaken Germany as the world's top merchandise exporter in 2009 from WTO data, demonstrates trade status of China in the international trade market. Tianjin posted the fastest growth rates of 16.4 percent among the provinces in China in 2011 as well as ranked as top city in 2012 of economic strength in the global competitiveness by EIU. Trade transition from traditional industry in China transformed the impetus of foreign trade successfully bringing economy prospects in Tianjin with superiority of geography and resources. The research utilized RCA and BCG analysis to observe significance and comparative advantage of each kind of Tianjin’s export products classified by SITC international trade standard method. Moreover, the research selected several affects factors categorized as fundamental element、global propelling and financial factor to examine each variable would be influential and the relation on foreign trade in Tianjin by regression analysis.