Scientific and reasonable indicator system is the key for evaluating citizenization level of new generation migrant workers. With reference to basic connotation of endogenous and exogenous variables and in view of citizenization characteristics of new generation migrant workers, it built an evaluation indicator system including endogenous indicators based on micro-individual and exogenous indicators based on meso-urban environment and macro-national policies. Besides, combining current situation of new generation migrant workers in Jiangsu Province, it evaluated citizenization level of the indicator system, in the hope of providing certain reference for evaluating citizenization level of new generation migrant workers.