Social justice is the goal of every nation's development. Education is one of the conditions to ensure fairness and development opportunities for each individual in society. Access to education services, especially public education services in developing countries like Vietnam, is limited. These restrictions result in differences in attendance rates for migrant and indigenous children, the higher the level of education, the greater the difference. Understanding barriers that prevent migrant children from accessing public education services will help immigrants integrate into urban life effectively participate in the city's economic activities, reducing crime rate, improve the quality of life of people. Through in-depth interviews with 35 people in Tanphu District, including immigrants, local police officers, landlords and educational staff in Tanphu District, along with secondary data from Tanphu District Education and Training Department, Statistical Office of Tanphu District, the study has identified the reasons that prevent access to public education services of immigrants. These barriers come from educational service providers and educational service users. The results of this study provide a comprehensive picture of public education provision in Tanphu District. This is the basis for further studies on education support policies for immigrants.