Abstract: Problems of rural workers have attracted much attention in the process of industrialization. Study on the consumption of rural migrant families is of great significance on expanding domestic demand, as well as to the promotion of urbanization．Using sample data of 998 rural migrant families, this paper analyzed the factors impacting the rural migrant families’consumption in their working places from three aspects: income, family characteristics and uncertainty. The results indicate that: income factor has a significant effect on the overall household consumption, resident expenditure and recreational venues; family characteristics, such as cultural level, job and children status, have different impacts on different consumption expenditures; tenement has a significant impact on the overall household consumption and residential expenditure; the health factor is significantly negative connected with medical expenditures. Therefore, in order to improve the consumption level of the rural migrant families and enlarge the consumption potential, on the one hand, it is important to increase the rural migrant families’income; on the other hand, it is helpful to improve the cultural level of the rural migrant workers, and it is necessary to perfect social security system so as to reduce the impact of the uncertainty factors on the rural migrant families.