本文以2000年至2009年計22家台灣商業銀行之追蹤資料（panel data），並利用雙因子固定效果模型（two-factor fixed-effects model）探討不同放款之成長對逾期放款比率（逾期放款/放款總額）與轉銷呆帳率（轉銷呆帳/放款總額）之影響效果。 一般而言，金融主管機關以逾期放款比率為代表銀行資產品質之指標，然而銀行或為達成業績目標，或為符合主管機關之監理要求，往往追求短期成長而忽視風險控制，在初期因放款基礎擴大反而造成逾期放款比率下降的資產品質改善假象，之後卻面臨資產品質惡化須大幅轉銷呆帳或出售不良債權而侵蝕銀行獲利及資本，因此除逾期放款比率外，本文另納入轉銷呆帳率為衡量放款品質之指標，以確實瞭解銀行信用擴張對資產品質之影響，提供金融主管機關及銀行業者在未來相關政策上之參考。 研究結果顯示，民營企業放款成長率、消費者放款成長率及資本適足率對逾期放款比率有顯著負向影響，無擔保消費者放款成長率、前期逾期放款比率及淨值比率對轉銷呆帳率有顯著正向影響，總放款成長率、中小企業放款成長率及消費者放款成長率對轉銷呆帳率有顯著負向影響。 / This paper studies 22 banks from Taiwan during the 2000-2009 period. The panel data regression is used to analyze the different loan growth influencing non-performing loan (NPL) and charge-off ratios of Taiwan’s commercial banks. In general,the authority use non-performing loan (NPL) ratio to represent the quality of bank assets.But for performance or in compliance with the authority's request,banks may pursue loan growth in the short term and ignore the risk.In the beginning, NPL ratios decrease and then banks face deterioration in assets quality.Except NPL ratio, this paper adds charge-off ratio to analyze the effect of different loan growth on assets quality. Our major findings are as follows:(1) The effects of private enterprises loan growth rate, consumer loan growth rate and capital adequacy ratio on NPL ratio are significantly negative. (2) The effects of non-residential consumer loan growth rate,NPL ratio of the previous period and equity ratio on charge-off ratio are significantly positive. (3) The effects of total loan growth rate,small and medium enterprises loan growth rate and consumer loan growth rate on charge-off ratio are significantly negative.