With the development of society，more and more influxes of workers are coming into the cities.This article will use the specific domestic workers who live in family-style home labor as research objects.Using oral methods，they try to understand their life history from their life stories and analyze their difficulties and needs，so that social workers can better understand the characteristics of their group and better promote this marginalization group.Secondly，this article will analyze the paradigms of life course theory and analyze the important nodes in their life development process and the social forces that construct their life forms.