資訊時代下全球化造成了流動空間的出現，亦促進了網絡社會的崛起；其影響不僅擴及政治、社會、經濟層面，更形成了全球犯罪經濟的現象。臺灣境內詐欺犯罪從過去當面直接接觸，轉為透過電信或網路間接接觸的詐騙形式；在政府的全面查緝及兩岸共同打擊犯罪之下，近年來電信詐欺集團呈現向外擴散跨越國境乃至全球的趨勢。此類全球犯罪網絡的相關實證研究至今仍極為缺乏，因此，本研究旨在討論前述犯罪機會、空間分工及社會網絡如何形成跨境電信詐欺犯罪網絡，及其背後的特殊運作機制。 　　經由文獻探討法、現有資料統計分析法及深度訪談18名受訪者（受刑人11名、偵查人員4名、駐外聯絡官3名），本研究發現犯罪機會同時影響空間分工及社會網絡，這三個重要指標亦型塑了跨境電信詐欺的犯罪網絡。詐欺集團利用各類犯罪機會（犯罪者、標的物、監控缺乏及手法工具的聚合，其中監控包含國家、網路與金融管制層面），結合空間移動、分工與第三地機制，社會網絡強弱連帶與第三方機制，形成特殊運作機制，促使詐欺網絡成為無遠弗屆的全球犯罪體系；核心組成員與第三方既是連結也是斷點的關係，更是其中的運作關鍵。透過此種犯罪網絡分析，可深入瞭解全球跨境犯罪的運作概略，進而形成應對防治作法及刑事政策建議。 / In the Information Age, globalization has brought about the emergence of space of flows and the rise of network society. Its influence not only extends to the political, social, and economic levels, but also forms the global criminal economy. In Taiwan, fraud has occurred from direct contact format (such as face-to-face) to indirect ones (such as via telephones and the Internet). Owing to the government's comprehensive investigation and the cross-strait joint criminal judicial co-operation, the telecoms fraud groups recently have traveled across borders and even to the whole world. As the relevant research based on empirical data is scant, this research aims to discuss how criminal opportunities, spatial division of labor, and social networks construct a cross-border telecommunications fraud criminal network and the special operational mechanism behind it. In this research, I reviewed the relevant literature, analyzed empirical data, and then conducted in-depth interviews with 18 respondents which include 11 prisoners, 4 criminal investigators and 3 police liaison officers. It is concluded that criminal opportunities would influence the spatial division of labor and social networks within criminal groups; these three important indicators formulate the criminal network of cross-border telecommunications fraud. A special operational mechanism combining various criminal opportunities (the convergence of offenders, targets, absence of guardians, and means; in which guardians include the level of national, cyber and financial regulations), spatial mobility and division of labor with the third-place mechanism, and strong and weak ties of social networks with the third-person mechanism, transforms fraud networks into a far-reaching global criminal system. The relationship between core group members and the third-person is not only a link but also a breakpoint, and it is undoubtedly the operational key. Ultimately, this research paints a clear picture of the global criminal networks and thus will possibly benefit the development of future criminal prevention and correction policies.