1979年1月21日，警備總部以涉嫌參與吳泰安叛亂案為由，逮捕黨外領袖余登發與其子余瑞言，之後軍事法庭以「知匪不報」與「為匪宣傳」的罪名將余登發判處8年有期徒刑，余瑞言則被以「知匪不報」罪名判處2年有期徒刑。余氏父子被捕後，其家屬及黨外人士透過許多途徑進行救援。其一是透過集會、結社與言論聲援等「法律邊緣」的手段；其二是透過法庭攻防、議會質詢與提案，以及政治溝通等體制內較「合法」的管道；其三則是經由海外力量進行救援，希望能影響威權當局。經過持續的救援，余登發終於在隔年2月獲准保外就醫。在政治救援的過程中，黨外陣營不只營救余氏個人，救援本身也是黨外民主運動的一部份，政治救援連結民主運動的現象，是該事件最主要的特色。其次，亦值得注意的是，保外就醫後的余登發不顧當局揚言將他捉回監獄的警告，仍持續參與民主運動。他不但被黨外人士救援，他也「救援」（支援）黨外民主運動，呈現「雙向救（支）援」的現象，在臺灣民主發展史上別具歷史意義。

On January 21, 1979, the Taiwan Garrison Command arrested the leader of outside the KMT party, Yu, Deng-Fa, and his son Yu, RuIyan on suspicion of involvement in the Wu, Tai-An rebellion case. Subsequently, the military court sentenced Yu, Deng-Fa to eight years' imprisonment for the charges of “failing to report knowledge of rebels" and "propagating for the rebels," while Yu, Rui-Yan was sentenced to two years' imprisonment for "knowing the rebels but not reporting." Following the arrest of the Yu father and son, their family members and the figures of outside the KMT party initiated rescue efforts through various means. Firstly, they utilized rallies, associations, and supportive speech that verged on the illegal to garner public attention. Secondly, they employed more "legitimate" methods within the system, including courtroom attack and defense, parliamentary inquiries and proposals, as well as political communication. Thirdly, they sought assistance from overseas forces in the hope of influencing the authorities concerned. Through persistent rescue efforts, Yu, DengFa was finally granted medical parole in February of the following year. Throughout the process of political rescue, outside the KMT party not only worked to rescue the Yu father and son but also turned the rescue itself into an integral part of the democratic movement outside the KMT party. The interconnection between political rescue and democratic movement stands out as the primary characteristic of this event. Furthermore, it is worth noting that after being granted medical parole, Yu, Deng-Fa continued to participate in democratic movements despite warnings from the authorities concerned that he could be returned to prison. He not only received support from figures of outside the KMT party but also actively "rescued" （ supported） the democratic movement outside the KMT party, demonstrating a "twoway rescue" that holds significance in the history of Taiwan's democratic development.

余登發; 余瑞言; 吳泰安; 政治犯; 黨外; 民主運動; 政治救援

Yu Deng-Fa; Yu Rui-Yan; Wu Tai-An; Political Prisoners; Outside the KMT Party; Democratic Movement; Political Rescue