Studying the relationship between the spatial organization of the urban fabric and social interaction is of great importance as it helps to develop a preventive strategy for the future in avoiding the numerous effects of losing social vitality from important parts of the city. This research aims to explore the dialectic relation between syntactic properties of space and the social dynamics in the city. To reach the goal, a structure of social integration contents in Amman city, is traced on two levels: the global city scale and for local districts. An axial map of "13661" lines is prepared for Amman by the researchers, and the conceptions of Space Syntax theory and the earlier and more general Graph Theory are utilized as evaluation tools for the social vitality of the axial spaces. The "integration" values are calculated using UCL Depth map Software. The outcome graphs of the UCL Depth map provide two important results; first, on the global city scale, the existence of a literally biased social vitality of urban spaces, since the axial lines with relatively high integration values are almost all located in western Amman; while the vast majority of eastern Amman axial lines has lower integration values. The other result is on the micro scale, the absence of a social-based clear definition of an urban space in the city of Amman.