This article analyzes the data of 2017 China Migrants Dynamic Survey, exploring the status of the familization of migrants in China. The research redefines the concept and types of the familization of migrants through three aspects, i.e., mobility mode, mobility process, and mobility result. It divides the migrant families into separate families and aggregate families according to the degree of familization. The study finds that the current Chinese migrant families are evolving from separation to reunion. The flow pattern of the Chinese migrants has shifted from singularity to diversification, presenting the characteristics of familybased mobility; the flow process follows three different sequences: “one of the spouses goes first” “husband and wife go first together”, and “other members go first”; and the flow path can be further divided as “separation” and “reunion” based on the husband and wife relationship and the parentchild relationship. These results demonstrate an overall family status of “more reunion and less separation”. An indepth investigation of the degree of familization of the migrants will help to grasp the basic status of the migrant families and provide important implications for urbanization of the migrants.