This paper explores the influence of the real-world urban attributes on the information flow among cities. UCINET was used to analyze the evolution of the spatial structure of information flow (SSIF). The Geodetector is applied to identify the spatial stratified correlation between the SSIF and urban attributes. The authors choose indicators such as economy, scale and facilities as background indicators. Furthermore, based on the textual categorization of the Baidu urban demand map, we selected the factors that people search more frequently as ...