為維護國家安全，情報機關常以通訊監察之方式來蒐集資訊，但是，通訊監察的執行，對於監察對象及無辜第三人之通訊隱私常常造成相當大之影響。是故，在執行情報通訊監察時，於程序上應如何衡平國家安全及人氏基本權利兩方面之需要，應佳深入研究。在此一議題上，美國實務發展已久，也已有極為完整之規定，本文介紹了其中之重要法制，併在討論後指出我國國家情報工作法及通訊保障及監察法中應該修正之處，冀希其得為將來立(修)法及學說研究之參考材料。

For the purpose of national security， intelligence agency usually conducts communication surveillance to gather necessary information. However， from time to time， communication surveillance invades the privacy rights of targets and innocent third parties. Thus， it becomes critical to balance national security and the protected fundamental rights while conducting intelligence communication surveillance. This article introduces and analyzes the legal framework of foreign intelligence surveillance of the United States. In addition， we point out the defects of the National Intelligence Services Law and Communication Surveillance and Protection Law.