Family flow trend has gradually become the main mode of floating population in China. Based on the dynamic monitoring data of floating population in China in 2014, this paper analyzed the general characteristics, heterogeneity, and influencing factors of life satisfaction of floating population in different flowforms. Through constructing an ordinal logistic regression model for 15998 samples from 8 cities, it is found that there are obvious differences in life satisfaction of floating population in different flow forms. The flow with family members can significantly improve the life satisfaction of floating population. The factors affecting the life satisfaction of non-individual floating groups are far more than those of individual floating groups. The factors, such as household consumption rate, living community as well as social inclusion, become important factors affecting the life satisfaction of different mobile groups.