本篇文章目的是研究在1996 年至2004 年間，臺灣地區人壽保險業之競爭程度狀況，並希望藉以探討導致臺灣整體壽險市場經營困難的主要原因，到底是因為處於過度競爭的局面，還是受到市場經濟不景氣或政策利空等因素所影響？這些問題的探究可讓臺灣在往後金融發展政策上提供重要的參考基礎。本研究以Rosse-Panzar 非結構模型作為研究臺灣地區壽險業的競爭程度證據，發現1996年至2000 年壽險市場是處於完全競爭(PC)，但2001 年至2004 年均拒絶市場存在獨占力(M)或完全競爭(PC)之虛無假設，顯示該年度為壟斷性競爭市場(MC)。 / The purpose of this paper is to examine the degree of the competition on the life insurance industry in Taiwan from 1996 to 2004 and to investigate thereason why the whole Taiwan life insurance market operates so difficultly.Perhaps it was because of the excessive competition, the economic downturn, bad policy, and some other factors? Exploration of these issues can provide an important reference on the financial development policy to Taiwan Insurance Supervisory Authority in the future. This paper use the Rosse-Panzar non-structural model as an evidence to support the result, It proved that the Taiwan life insurance market was in the perfect competition (PC) during the period of 1996 to 2000. In addition, from the year 2001 to 2004, it rejected the null hypothesis of monopoly power (M) and perfect competition (PC), indicating that the monopolistic competition market (MC) existed.