With the development of the times，there are more and more marriage phenomena of “Registered Shanghai men marry with non-registered women” in Shanghai. Taking Shanghai as an example，this paper comprehensively studies and analyses the social integration and family development status and problems of female marital migrants in mega-cities at the present stage. Some suggestions are put forward to improve the household registration management policy of married immigrants and to improve the family development ability of non-registered daughters-in-law through diversified community services.