Measure and analyze the level of urban-rural integration in counties of Jiangsu Province, and explore the influencing factors of urban-rural integration in counties of Jiangsu Province, so as to provide policy inspiration and scientific basis for promoting urban-rural integration development in Jiangsu Province and other regions. By constructing an index evaluation system for urban-rural integration, this paper combined the natural discontinuation method, kernel density estimation method and exploratory spatial analysis method to describe the spatial and temporal distribution and evolution characteristics of urban-rural integration in Jiangsu Province from 2013 to 2021, and identified the internal obstacle factors and external driving factors of urban-rural integration in Jiangsu Province based on the obstacle degree model and geographical detector model. The results show that: (1) Since 2013, the level of Rural-urban integration in Jiangsu Province has continued to rise, but the level of rural-urban integration among counties is different and the difference is still expanding; By 2021, the integration index of each dimension in descending order is: social integration, ecological integration, spatial integration, economic integration, population integration; The regional integration index from high to low is South Jiangsu, Central Jiangsu and North Jiangsu. There is a positive global spatial correlation in county urban-rural integration in Jiangsu Province, and the local spatial distribution pattern shows high-high agglomeration and low-low agglomeration types, with low-level agglomeration taking the main part. (2) On the whole, the low level of industrial structure and employment structure, as well as the deviation of industrial structure and employment structure, are the main internal obstacles to the urban-rural integration development of counties in Jiangsu Province. From the perspective of different regions, there are differences in the resistance of each obstacle factor in Southern Jiangsu, Central Jiangsu and Northern Jiangsu. (3) Digital technology is an important external driving force for urban-rural integration at county level in Jiangsu Province. Among them, the digitalization of rural economy is the most obvious driving force for urban-rural integration, and digital marketing is the main driving path. This study believes that the communication and interaction between counties should be strengthened to promote the linkage and balanced development among counties. Optimize the industrial structure and employment structure of the county simultaneously, according to local conditions, aim at the advantages and disadvantages of each county, and break the obstacles of urban-rural integration in Jiangsu Province; We will focus on supporting the application of digital technology in the rural economy, cultivate new forms of business represented by rural e-commerce, and help the integration of urban and rural areas at the county level to a new level.