隨著國人前往大陸探親、經商、旅遊等交流活動日益頻繁，兩岸人民聯婚之數量亦明顯增加，造成有心人士在兩岸政策漸漸鬆綁之際，利用婚姻制度來遂行其不法目的。本研究以實際線上從事面談之經驗觀點從過往案例結合實務經驗進行質性分析研究，期望對於現行的面談工作未來發展有所助益。研究發現目前國境面談人員執行困境有：面談時間短暫，無法詳細查證、面談人力不足，品質無法提升、管理與人權服務並重，執勤易生兩難、不法集團透過對面談者之瞭解，對於面談內容及重點有所掌握，增加發掘假結婚之困難度。為有效防制假結婚來臺從事不法，國境事務大隊除應加強勤務執行外，亦應加強面談前資料分析、規劃多元教育訓練課程、面談執勤人員成效考核與新進面談人員遴選，以確保面談工作執行成效。國境線執行面談為行政調查，非刑事調查，在時間與人力的投入上，無法與刑事調查相提並論，且國境面談有時間限制及人力壓力，常無法即時發現重大瑕疵或不法事實，據此，本研究建議應加強事前境內訪查、落實動態通報系統，與明確強化拒入法令要件。

More and more Taiwanese go to Mainland China to do business, visit relatives, and travel around in recent years. As a result, marriages of people across the Taiwan Strait are also increasing substantially. Some unscrupulous persons take sham marriages to enter Taiwan and engage in illegal activities. According to this study, border marriage interviews are facing the following difficulties: short interview time, unable to verify the details of married couple, lack of interviewers. Since management and human rights are equally important, dilemmas are often ensuing. Uncovering of a sham marriage is getting harder and harder since it is easier for the unlawful syndicate to be familiar with contents and procedure of the interview. In order to combat the sham marriages, the National Immigration Agency not only strengthens interview practice, but also enhances the data analysis before the interview. Besides, multiple training courses, performance assessment and rigorous recruitment are applied to improve the effectiveness of interview. Since marriage interviews are administrative investigations rather than criminal investigations, the time and manpower spend are far less than criminal investigation. Besides, marriage interviews are facing the difficulties of time constraints and lack of human resources; therefore, it is often hard to detect sham marriage during interview. This study recommends: strengthen domestic visits of married couple after they pass marriage interview, establish dynamic notification system, and articulate requirements of refused entry.