Community residents and residents' committee are the key subject of supply and demand structure in the city community service, gravely insufficient interaction and response between the two constraints to optimize the quality of community services. On the basis of the investigation, we use the "response" theory to analyze the interaction between supply and demand sides of the city community services and illustrate the obstacles of interaction, analyze the reasons for lacking of interaction and response from the consciousness of residents, neighborhood quality of service, response channels, etc. And then we propose several paths to build interactive and respondent mechanisms.