本研究欲探討兩岸銀行業公司治理與經營績效之關聯性，使用資料包絡分析法及交叉效率分析比較2008至2013年兩岸銀行業的經營績效。根據本研究實證結果顯示：兩岸銀行業確實分屬不同效率前緣，且中國銀行業業之技術效率優於台灣銀行業之技術效率。但金融海嘯後台灣在規模效率上進步，顯著超過中國。在公司治理機制與經營績效關聯性分析中，顯示兩岸因制度性的差異上，使得公司治理變數與經營績效之關聯性幾乎完全相反。在政府持股率與經營績效關聯性上，雖然都不顯著，但中國係數為正，台灣為負，說明兩岸政府對企業的影響力是有所差異。獨立董事比例與純粹技術效率是唯一兩岸都顯著之變數，但中國為顯著負相關而台灣為顯著正相關。研究結果顯示兩岸在公司治理實務與經營績效有很大的差異。 / The purpose of this paper tries to make a cross strait comparison between corporate governance and efficiency performance in banking industry. We apply data envelopment analysis and cross efficiency frontier analysis to measure and compare the performance of banking industry between Taiwan and China from 2008 to 2013. The empirical results reveal that Taiwan and China indeed have different efficiency frontier, and the cross frontier analysis suggests that the efficiency performance of China is much better than that of Taiwan. However, the scale efficiency of Taiwan had a better performance than that of China after financial crisis. Due to system difference, the cross strait comparison of corporate governance between efficiency performances denotes that Taiwan and China almost have opposite effects. China indicates a positive coefficient between bank’s stock holding ratio by government and efficiency performances. On the other hand, Taiwan indicates a negative coefficient, although both are statistically insignificant. The result suggests that the political power has a contrary influence for Taiwan and China. The percentage of independent directors is the only variable that statistically significant with pure technical efficient on both sides. However, which is negative coefficient associated with China, but positive coefficient associated with Taiwan. Therefore, we can conclude that the corporate governance practices have opposite influence on efficiency performance between Taiwan and China.