自1949年國民黨政府播遷來臺，兩岸分治從軍事對立與衝突時期（1949-1978）至相互對峙互不往來（1979-1987），直到1987年我宣布解除戒嚴令，基於人道及親情考量，開放民眾赴大陸探親，方開啟我方與大陸之交流。並於2002年1月1日起，開放大陸地區人民來臺觀光，2008年新政府規劃將從7月4日開始，陸續擴大開放大陸人民來臺觀光，預估每年將有110萬人次。就國家安全觀點，尤其有無情報人員藉此來臺滲透、蒐情？實值深入研究與探討。 由於中共至今並未放棄以武力犯臺的意圖，其中來臺觀光對象中之特殊人員，在入出境審核作業上，亦以國家安全為主要考量，為謹慎評估威脅國家及其利益的範圍，在確定威脅之後，下一步驟是發展應變，並保護國家利益的政策設計。致本文在研究方法上，採用文獻分析法、歷史研究法及個案研究法來分析相關資料，並就已查獲之共諜案例研究分析。 本文希望藉由研究結論建議政府相關單位，在規劃擴大開放大陸來臺觀光，更應防範大陸人士假藉觀光名義來臺從事「交通」或滲透之實，並提出更有效國家安全管理機制。 / Since the Kuomintang government withdrew to Taiwan in 1949, Taiwan and Mainland China are divided ruled from the period of military conflict (1949-1978) to the period of non-mutual contact(1979-1987). Until 1987, our government based on the considerations of humanitarian and family ties and announced lifting the Martial Law, then opened residents to the mainland to visit their relatives. And since January 1, 2002, our government opened more mainland people to Taiwan for sightseeing, in 2008, the Kuomintang government won the Presidential Election and plan to continuously open wider to the mainland people to Taiwan for sightseeing by the estimation of annual 1.1 million. From the view point of national security, particularly the Intelligence personnel may infiltrate to Taiwan to make intelligence collection. So,it is worth profound study and discussion. As the Mainland China has not given up the intention to armed invasion of Taiwan, The Intelligence personnel pretended tourists are the main targets in the entry and exit audit operations. For cautious assessment of the scope of threats to national interests and for the protection of national interests to develop contingency plans and the policy Planning, this study take the use of Literature analysis , historical research and case studies ,especially focus on a total of the seized spy case study analysis. We hope that the conclusion of the study would be taken into account by the relevant government units in the planning of further opening up the mainland to Taiwan for sightseeing. in the meanwhile, the relevant units should guard against the guise of mainland tourists to Taiwan in the name of "traffic" but clandestine communication or infiltration in reality, and make more effective national security management mechanism.