Abstract: The time transfer of social risk is an important perspective to understand the current social injustice and "social embrittlement".It is a dynamic process that the stage social risk treated coldly accumulates and changes into social structural risk.Economic championships,institutional reform and cater,the defense of moral values and the low degree of social rationality are the powers of the qualitative change of social risk in space urbanization.Risk assessment,risk definition,and disregard for protest behavior are the specific mechanisms for the qualitative change of social risk.Social risk qualitative change is the main development cost since reform and opening up,and its direct consequence is the emergence of social structural risk,and the further cause is the unfair social risk distribution,which makes society into development and error-correction dilemma.Retrieving society,changing the path of economic championship development,building a "strong state-strong society" development model and making market serve the development of people and social improvement is the way out of the error-correction dilemma.

Key words: spatial urbanization, social risk qualitative change, social injustice, retrieve society