This study illustrates that such community organizing and community building practice as establishing community-based public or semi-public spaces and grassroots organizations particularly may be incorporated as part of the overall strategy to pro-mote the mental health of the middle-aged and older As a set of multidimensional socio-spatial process, social transformations may occur at different scales of social dynamics. Many different things co-occur in this process such as the redevelopment of central areas, the clash between newcomers and established residents, and uncertainties and fears growing among the residents. And all these tensions an conflicts, together with the uncertainties, fear, and feeling of loss due to the displacement from familiar contexts and support net-works all contest with each other, and may increase the vulnerability of mental health .Maintaining the health and well-being of its populations is there-fore one of the major challenges for sustaining the development of China. Establishing community-based physical infrastructures and programs that foster a sense of community and shared values may contribute to improving the individual’s mental health.