Yuying Tong, born in Mainland China, received her PhD degree from the University of North Carolina at Chapel Hill and now is an associate professor in department of sociology at the Chinese University of Hong Kong. Her main research interest areas include migration and immigration, gender, family and life course. She has published in the mainstream sociology and population journals such as American Journal of Sociology, Social Forces, Social Science Research and Demography. Her current on-going research topics include following aspects. 1). Integration of immigrants/migrants in the host society. She has examined migrants or immigrants’ integration in both internal and international migration context. 2). Consequences of rural to urban migration to rural sending communities, in which she has examined migration and the gender implication in household livelihood strategy and economic outcome as well as left-behind persons’ well-being. 3). the third area is family and life course transition, in which she has studied family transition in China and other East-Asia area.