Tourism ecological security (TES) is an essential component and basic guarantee of the tourism regional system, and it is of great significance for scientific measurement of the operational status of a regional tourism ecological security system. The study focuses on the “quality” of tourism ecological security that has been neglected in the previous literature. From the perspective of system efficiency, taking the Yangtze River Delta as the case, we build the index system of regional tourism ecological security measurement based on the “DPSIR” model, and identify the quality of the tourism ecological security system using the data envelopment analysis method. On this basis, the study uses spatial autocorrelation to visualize the spatiotemporal patterns of evolution and regional differences, and uses spatial econometric model to study the spatial effects of regional tourism ecological security. The study shows that: the tourism ecological security follows an overall rising trend of “W” fluctuation with regional differences in the Yangtze River Delta (YRD). Tourism ecological security of Jiangsu, Zhejiang and Shanghai is in good condition, that of Anhui Province is poor, and Hangzhou, Zhoushan, Huangshan, Shanghai, Nanjing and other cities perform well. The overall spatial autocorrelation of tourism ecological security is significant and shows a trend of fluctuation intensification. The local correlation indicates that the tourism ecological security space is highly dependent and has a spatial differentiation pattern of “south to north” in Yangtze River Delta. The direct effects of park greenspace per capita, proportion of total tourism revenue in GDP, number of employees in the tertiary industry, and education expenditure on the regional tourism ecological security are significant. And the indirect spatial spillover effect of park greenspace per capita, the proportion of total tourism revenue in GDP, and education expenditure is obvious. Finally, from the perspective of efficiency, quality can effectively clarify the operational process and mutual relationships of regional tourism ecological security systems, and provide a scientific basis and reference for formulating targeted tourism development policies.

旅游生态安全（TES）是旅游区域系统的重要组成部分和基本保障，对于科学衡量区域旅游生态安全系统运行状况具有重要意义。研究关注的是以往文献中忽视的旅游生态安全“质量”。从系统效率角度,以长三角地区为例,基于“DPSIR”模型构建区域旅游生态安全测度指标体系,利用数据包络分析识别旅游生态安全系统质量方法。在此基础上，研究利用空间自相关将演化和区域差异的时空格局可视化，并利用空间计量模型研究区域旅游生态安全的空间效应。研究表明：长三角地区旅游生态安全总体呈“W”波动上升趋势，存在区域差异。江浙沪旅游生态安全状况较好，安徽旅游生态安全较差，杭州、舟山、黄山、上海、南京等城市表现较好。旅游生态安全总体空间自相关显着，呈现波动加剧的趋势。局部相关性表明，长三角旅游生态安全空间高度依赖，具有“南向北”的空间分异格局。人均公园绿地的直接影响，旅游总收入占GDP比重、第三产业从业人数、教育支出对区域旅游生态安全影响显着。人均公园绿地、旅游总收入占GDP的比重、教育支出的间接空间溢出效应明显。最后，从效率、质量的角度，可以有效厘清区域旅游生态安全系统的运行过程和相互关系，为制定有针对性的旅游发展政策提供科学依据和参考。旅游总收入占GDP比重明显，教育支出明显。最后，从效率、质量的角度，可以有效厘清区域旅游生态安全系统的运行过程和相互关系，为制定有针对性的旅游发展政策提供科学依据和参考。旅游总收入占GDP比重明显，教育支出明显。最后，从效率、质量的角度，可以有效厘清区域旅游生态安全系统的运行过程和相互关系，为制定有针对性的旅游发展政策提供科学依据和参考。