基于2010—2019年新疆市域面板数据，从投入产出视角归纳城际列车对旅游经济高质量发展的驱动机制，通过熵权法测算旅游经济高质量发展评价指数，利用多期双重差分模型实证探究城际列车对新疆旅游经济高质量发展的影响效应。结果表明：（1）新疆旅游经济高质量发展整体呈非均衡化的上升趋势，演化格局为“单中心辐射型→双中心放射型”。（2）城际列车有效提升新疆旅游经济高质量发展，显著影响北疆旅游经济高质量发展且伴随负向调节效应，未显著影响南疆但伴随正向调节效应。（3）城际列车显著影响旅游经济高质量发展中等水平市域，未显著影响高水平和低水平市域。（4）城际列车对维度层影响机制的显著正向效应依次为创新>共享>绿色>开放，对协调发展维度的影响效应不显著。研究结果丰富“铁路+旅游”融合发展的典型案例，助力探索城际列车与旅游经济高质量融合发展的路径模式。

This study empirically explores the effect of intercity trains on the high-quality development of tourism economy in Xinjiang, China using a multi-period difference-in-difference model and based on the municipal panel data from 2010 to 2019. It also measures the evaluation index of the high-quality development of the tourism economy through the entropy value assignment method. The conclusions of this paper are as follows: (1) The study revealed an uneven high-quality tourism economic development in Xinjiang, and its evolution pattern is “monocentric radiation→bicentric radiation”. (2) The presence of intercity trains effectively improves the high-quality development of tourism economy in northern Xinjiang with negative adjustment effect and has no significant indigenous influence on southern Xinjiang with positive adjustment effect. (3) Intercity trains have significant influence on medium-level cities with high-quality development of tourism economy but have no significant influence on high-level cities and low-level cities. (4) The significant positive effect of the intercity trains on impact mechanism of development dimension is innovative development>shared development>green development>open development, and the impact on the coordinated development is not significant. This study enriches the classic cases of the integrated development of “railway+tourism” and helps explore the path mode of high-quality integrated development of intercity train and tourism economy.