Migration in Urban China is facing double complex evolutions logic from structure restriction and self-selections.With 4 databases，and viewing the politics system，market system，and urban society as structural elements，the practical logics between the “structure restriction and personal selection” has been found in the following：1）Structural levels from politics，markets and urban society are not integrated well，especially the market system is blocking the migration people into urban.2） Most migrant population noticed exclusion from market and not perceived the possible repulsion from policies and urban people.3） There are a number of factors promoting migration to integrate into cities，such as female，higher edcation，good family income，married state，a spouse who is urban，less life pressure，more acquaintance to law and norm and modern orgnizations，harmony society and identifcation with mainstream culture.