This report is based on a national survey about citizens’ unban-identity of most cities in China with the perspective of city grading，which attempts to explore the status quo of citizens’ urban identity and its specific dimensions，and further to examine the influences of sex，age，education，income and census register on these identities. This report also pays attention to the interacting effects of city grading and various demographic variables. The results demonstrate that the unban identity levels were not always matched with economic development；the aged people got lower urban identity scores than other ones；the residents with the monthly income on the average（7000 to 10 000 Yuan）had higher identity scores than other ones. In addition，the local residents had higher urban identities than nonlocal ones.