本研究揭示了2019-2024年日本特殊诈骗犯罪呈现‘技术驱动扩散、弱势群体聚焦、国际化犯罪网络形成’的三角演变模式。研究发现，日本特殊诈骗犯罪规模持续扩张，日均被害金额显著攀升，新型技术手段如弹窗诈骗和跨境汇款诈骗占比大幅增加。老年群体，特别是老年女性，仍是主要受害群体。犯罪网络结构复杂，境内青少年、跨国中介及暴力团伙分别扮演不同角色。面对诈骗手段快速迭代、防控体系碎片化、社会脆弱性突出的挑战，开展系统性研究具有重要现实意义。本文以日本治理经验为基础，系统梳理其演变逻辑与防控路径，旨在为中国电信诈骗治理提供可借鉴的经验与政策建议。

This study reveals a triangular evolutionary pattern of special fraud crimes in Japan during 2019–2024, characterized by technology-driven diffusion, victimization of vulnerable groups, and the formation of transnational criminal networks. The findings indicate that the scale of special fraud in Japan has continued to expand, with the average daily financial loss rising sharply. Emerging techniques, such as pop-up fraud and cross-border remittance fraud, account for a significantly increasing share. Elderly individuals—particularly elderly women—remain the primary victims. The organizational structure of fraud networks is complex, with domestic youth, transnational intermediaries, and organized crime groups each playing distinct roles. In the face of rapidly evolving fraud techniques, fragmented prevention systems, and pronounced social vulnerabilities, conducting systematic research holds great practical significance. Drawing on Japan’s governance experience, this study systematically examines the logic of fraud evolution and the pathways of prevention and control, aiming to provide valuable insights and policy recommendations for China’s telecom fraud governance.