Scientific evaluation of urbanization quality is of great significance to measure the level of urban development and promote sustainable urban development.Based on the two dimensions of urban development and urban environmental quality,an evaluation index system of urbanization quality in Liaoning province was constructed,and methods including entropy weight,standard deviation ellipse and geographic detector were comprehensively used to explore the urbanization quality and its spatial distribution,spatial evolution trend and influencing factors in Liaoning province.The results show that,from 2005 to 2019,the overall urbanization quality index increased from 2.74 to 4.74,of which the quality of economic urbanization subsystem had the largest increase,the quality of social urbanization and environmental governance subsystem had an obvious upward trend,and the quality of environmental state and environmental pressure subsystem was relatively stable.For the spatial distribution of urbanization quality,the index ranged from 0.087 to 0.740 for Liaoning's cities,with Shenyang as the "big core" and Dalian as the "small core" of regional agglomeration.The center of gravity ellipse of urbanization quality standard deviation fell on Liaoyang,and the deflection trajectory was along southeast-northwest-southwest from 2005 to 2019,with annual increasing distance and speed of the center of gravity ellipse of standard deviation.Among all the subsystems,economic urbanization,social urbanization and environmental management posed more influence on urbanization quality in Liaoning province;specifically,main influencing indexes included urbanization area,fixed assets investment,number of people participating in primary pension insurance,number of college students per ten thousand people,and capacity of domestic garbage removal and urban sewage treatment,which played growing influence on urbanization quality.