Based on the panel data of China Health and Nutrition Survey from 1993 to 2011, this paper investigates the impact of informal care on women’s behaviors of choosing the informal employment and women’s income by controlling endogeneity. In general, informal care decreases the probability of formal employment but increases the probability of informal employment. And the more hours(≥10h per week) of care women provide, the more apt they are to choose informal employment. Moreover, informal care has negative effects on women’s income of informal employees, but the effects will be weakened by the increase of caregiving intensity. On the contrary, the effects will be strengthened by the increase of caregiving intensity to formal employees. Thus, informal employment not only provides a balance between informal care and work, but also increases family income. Based on the empirical results, the corresponding policy recommendations are proposed.