The second generation migrants in China are expanding as a result of the development of family migration. Using data from the 2016 China Migrant Population Dynamic Monitoring Survey for the second generation, we analyze factors that influence the decision making of the second generation return migrants. A principal innovation of this essay is that a new method to use the national survey data to measure the return migration among second generation migrants has been developed. Results show that (1)13-15 yearold second generation migrants are more likely to return than other age groups; (2) The more frequently their parents stay, the more likely the second generation migrants will return; the longer duration their parents migrate, the less likely the second generation migrants will return; the more leftbehind siblings there are in the household, the more likely the second generation migrants will return; (3) Compared with short distance migrants, interprovincial migrats of the second generation are more likely to return;(4) Compared with those in the Middle and the West region, the second generation born in the East are more likely to return. We argue that challenges facing the development of Chinese urbanization will be formidable.