Old city Renewal and urban transformation has been improved a lot since refor m and opening up,but also there are many problems:Fist,City Renewal is lack of wholeness. To profit as the main goal, the pursuit of a single economic, excessive increas e of floor area ratio, increasing the building density, reducing the distance between buil dings, resulting in too dense development and land abuse, resulting in environmental ov erwhelmed. Second, City Renewal is lack of systematic. Lack of understanding of the complexity of the district transformation, simplification of the problem, especially demoli shed for redevelopment updates to undermine the structure of the original space of the cit y and social ecological networks, both caused by the waste offinancial and material reso urces, but also caused the destruction of the urban fabric; The third, City Renewal is I ack of long-term. Only see a partial immediate economic interests in urban history, cultur e and landscape protection areas, the removal or alteration of the need to protect historic buildings, severely damaged the city’s traditional style and features; Fourth, the lack of a comprehensive neighborhood update. Limited to the development ofprofitable projects an d prime locations, some of the more difficult to generate considerable economic benefits o f infrastructure, facilities and the economic benefits need to be updated lots, no one care s, and the overall urban environment is difficult to get improvement. Five, City renewal i s lack of the public nature. district renewal only focus on the image to focus on perform ance, pay attention to face, the lack of livelihood projects, practical way to improve peo pie’s lives, is not comprehensive enough to solve the difficult problems of the masses, not deep enough; focus on efficiency, but unfair. These problems largely affected the urban renewal and neighborhood renewal process and effect, also affected the satisfaction of the masses to transform.the building. Neighborhood renewal and the scientific development concept requires the presence of the gap.Author by reading the literature of a large number of urban organic Renewal, c ombined with the KaiXuan regional transformation of the old practice, and BaoshiTa oyuan Village reconstruction project, GaoTing Shan scenic area development projects, research experience, I deeply feel the problems in the urban renewal work.Through access to more documents, with a problem-depth study and systematic analysis of the urban renewal work at home and abroad, collecting and sorting the course of its de velopment, theoretical research and implementation model in three aspects, analysis of the theoretical basis and the significance of the organic renewal of urban neighborho ods, with urbanblock its own characteristics and the principles of organic renewal of urban neighborhoods, ideas and content, the design of urban neighborhoods organic r enewal model and the path to build a city block of organic renewalevaluation system, the use of the theory of fuzzy mathematics to the organic renewal results of a comp rehensive evaluation of urban neighborhoods, and the introduction of KaiXuanorganic update an empirical analysis to obtain the quantitative results of the three organic r enewal index during analysis KaiXuan organic renewal index on the basis of propose d measures and proposals to promote the KaiXuan of organic renewal. Hope that thi s research on the actual work of the Organization to help.