城市群是我国经济发展的主要空间载体，加快西部城市群经济高质量发展对于缩小我国东西部发展差距、实现区域协调发展具有重要意义。文章以西部地区9个城市群为研究对象，构建我国西部城市群经济高质量发展水平评价指标体系并进行测度，同时基于经济、社会、制度、人口、环境5个维度，识别影响西部城市群经济高质量发展的主要驱动因素。结果表明：西部城市群整体经济高质量发展水平呈缓慢增长态势；子系统高质量发展水平差异明显，协调发展水平和绿色发展水平差距较大，开放发展水平差距最小；投资水平、消费水平、交通运输水平、工资收入水平、环境治理水平的提升能够显著促进西部城市群经济高质量发展，政府干预和人口集聚抑制了西部城市群经济高质量发展，各影响因素存在异质性。据此，西部城市群应进一步完整、准确、全面贯彻新发展理念、提升城市群经济高质量发展水平，坚持问题导向、加快补齐城市群发展短板，优化资源配置、推动城市群一体化发展。

Urban agglomerations are the main spatial carriers of China's economic development. Accelerating high-quality economic development in western urban agglomerations is of great significance for narrowing the development gap between the east and west of China and achieving regional coordinated development. The paper takes 9 urban agglomerations in the western region as the research object, constructs an evaluation index system for the high-quality economic development level of western urban agglomerations in China, and measures it. At the same time, based on five dimensions of economy, society, system, population, and environment, it identifies the main driving factors that affect the high-quality economic development of western urban agglomerations. The results indicate that the overall high-quality economic development level of the western urban agglomeration is showing a slow growth trend; There is a significant difference in the high-quality development level of subsystems, with a significant gap between the coordinated development level and the green development level, and the smallest gap in the open development level; The improvement of investment level, consumption level, transportation level, wage income level, and environmental governance level can significantly promote the high-quality development of the western urban agglomeration economy. The degree of government intervention and population agglomeration have suppressed the high-quality development of the western urban agglomeration economy, and various influencing factors are heterogeneous. Based on this, the western urban agglomeration should further fully, accurately, and comprehensively implement the new development concept, and enhance the high-quality economic development level of the urban agglomeration; Adhere to problem oriented approach and accelerate the filling of shortcomings in urban agglomeration development; Optimize resource allocation and promote the integrated development of urban agglomerations.