Happiness is a subjective feeling of satisfaction towards life，it is the assessment concerning degree of satisfaction in living conditions according to people’s own value standards and subjective propensity. The index of happiness，is the subjective index indicators to this feeling. The sub-district office of Suojincun in Xunwu District of Nanjing took initiative to set forth the “Assessment Standard of Harmonious Community’s Happiness Index”，it starts from upgrading residents’ ten “sense of happiness”，clarifies the ways of building harmonious community，that is：recognizing happiness，quantifying happiness，creating happiness，securing happiness and sharing happiness. The standard promoted the harmony among government，residents，society，enterprises and environment，and furthermore enhanced the capability of building an integrated harmonious society.