保安司令部諜報組之前身為1945年戰後臺灣省警備總司令部調查室所屬諜報組織，1947年1月調查室裁撤後該諜報組織改隸警總第二處，在二二八事件期間仍受保密局之指揮。二二八事件後，警總改組為臺灣全省警備司令部後，長期由彭孟緝負實際領導責任，保密局支配角色逐漸難以發揮，文中嘗試分析此一過程之原因與影響。1949年9月保安司令部成立後，相較於保密局與內政部調查局，為一功能完整的綜合型情治機關，諜報組隸屬保安處，在臺灣各縣市建有地域性諜報組，另有郵檢、文教、僑防等特殊任務諜報組，及在香港、日本等地之海外諜報組。諜報組的偵防手段，多以安置內線方式偵蒐情報，另亦以開辦報紙作為偵蒐情報之掩護，逮捕等行動則多與各地憲警合作。本文除由檔案中歸納出保安司令部時期諜報組之組別、化名、分布、成員外，也說明其在1950年代進行肅諜時的工作特色，及與其他情治機關可能存在之合作或競爭關係。

The Espionage Group of the Taiwan Provincial Security Command was previously an espionage organization affiliated to the Investigation Office of the Taiwan Provincial Garrison Command in the post-war period. Following the dissolution of the Investigation Office in January 1947, the Espionage Group was moved to the Second Office of the Taiwan Garrison Command, and it was still under the command of the Security Bureau during the 228 Incident. After the 228 Incident, the Taiwan Garrison Command was reorganized into the All-Taiwan Provincial Garrison Command, with Peng Meng-chi serving as the commanding general for a long time and with the Security Bureau gradually losing its control role. This article attempts to analyze the reasons and effects of the above changes over time. Following its establishment in September 1949, the Taiwan Provincial Security Command was a full-featured intelligence agency compared with the Secrecy Bureau and the Bureau of Investigation of the Ministry of the Interior. The Espionage Group was under the Security Office. There were more than ten regional espionage teams distributed over counties and cities in Taiwan, espionage teams with special missions including postal inspection, culture and education inspection, and public security, as well as espionage teams based in Hong Kong, Japan and overseas. Investigation methods used by the Espionage Group involved mainly setting up insiders to collect intelligence and running new agencies as cover. Arrests and other operations were mostly carried out in cooperation with the local police. In addition to summarizing the different teams, pseudonyms, distribution, and members of the Espionage Group under the Taiwan Provincial Security Command, this article also explains the characteristics of its work during the anti-espionage period in the 1950s, as well as possible cooperation or competition with other intelligence agencies.

保安司令部;保安處;諜報組;保密局;調查室;政治偵防

Taiwan Provincial Security Command; Security Office; Espionage Group; Security Bureau; Investigation Office; Political Detection and Defense