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Justice gap have been suggested as one of the most important effort in matter of improving urban health. Among some major documents significant relation between the living conditions and health level is found. There is long time that World health organization has identified the importance of equity. Based on information of this organization in 1999, equity in all nations is the most critical point to reach justice. Equity in health can be described as the having same chances of all people to have the highest and best health status. This requires an action to reduce justice gap in health status among the citizen of a city or a country. In 21 century reduction of these gaps to reach equality in health service require Intensive Corporation. In this regards, some action have been done by Tehran Town hall to reduce justice gap and improve health status. The most important one include performing justice intervention in Tehran different towns. In order to do this at the first step an instruction should be set up and send to various sites of city to be used. Moreover, in different stages of action required qualification should be done. Regarding to town hall policy to enhance active social cooperation for reaching the best health condition, a program for improving health system and reducing social and justice gap between different regional and local group in 20 states have been started.