通过系统梳理国内外交旅融合的研究现状与进展，旨在发现并提炼交通运输业与旅游业融合发展的理论，为交旅融合实践提供理论支撑。采用文献分析法和归纳演绎法梳理国内外学术研究成果及典型案例，研究发现：①国内关于交旅融合的研究，正逐步从以政策导向的实践探索向系统性的理论构建转换，涌现了“快进慢游”双网体系、交通导向型综合体、旅游路衍经济等本土化的交旅融合发展理论，凸显多模式衔接与交通场景旅游化改造等特征；②国外的研究历经功能适配、体验重构、系统共生三阶段，初步形成旅游风景道、旅游系统模型、交通旅游一体化等理论，其特色是强调生态保护与文化空间叙事；③国内外研究均呈现从“旅游交通”向“交通旅游”转型的特征，但国外研究更注重可持续性与数字化创新，国内则聚焦政策驱动下的多维度融合与交通旅游的全域化发展；④国内的研究存在理论碎片化、评价体系不完善、跨学科整合不足等问题。基于上述研究发现，未来我国的交旅融合发展研究需结合数字技术、可持续发展目标及本土化治理机制，构建生态、文化、科技、经济、社会协同框架，推动交旅融合向低碳化、智慧化、系统化、普惠化方向发展。

By systematically reviewing the current state and progress of research on the integration of transportation and tourism at home and abroad, this study aims to discover and refine existing theories on the integrated development of transportation industry and tourism industry, thereby providing theoretical support for practical applications of transportation and tourism integration. Employing literature analysis and inductive-deductive methods to sort out academic findings and typical cases at home and abroad, the study reveals that: ①Domestic research on the integration of transportation and tourism is gradually transforming from policy oriented practical exploration to systematic theoretical construction, giving rise to localized theories of integrated transportation and tourism development such as the "fast access, slow travel" dual network system, transit-oriented complexes, and tourism road derivative economy. These theories highlight features like multi-modal connectivity and the tourism-oriented transformation of transportation scenarios; ②Foreign research has gone through three stages of functional adaptation, experience reconstruction, and system symbiosis, and has initially formed theories such as tourism scenic trail theory, tourism system model, and integrated transport-tourism frameworks. Its characteristic is to emphasize ecological protection and culture′s spatial narrative; ③Both domestic and foreign research exhibit a shift from tourism-transportation to transportation-tourism. However, foreign research focuses more on sustainability and digital innovation, while domestic research focuses on multidimensional integration driven by policy and the comprehensive development of transportation-tourism across all regions; ④There are problems with fragmented theories, incomplete evaluation systems, and insufficient interdisciplinary integration in domestic research. Based on the above research findings, domestic studies in future need to combine digital technology, sustainable development goals, and localized governance mechanisms to construct a collaborative framework of ecology, culture, technology, economy and society, promoting the integration of transportation and tourism towards the direction of low-carbon, intelligent, systematic, and inclusive.