The quality assurance of child care and education is a fundamental activity at preschools in general, and private preschools in particular. In this paper, questionnaire survey method to study the awareness status of managers and teachers at private preschools in Hanoi City on three major contents: i) quality of child care and education at private preschools; ii) quality assurance of child care and education at private preschools; and iii) solution for quality assurance of child care and education at private preschools. The analysed results are significant for proposing effective solutions to enhance awareness and capacity for managers and teachers in ensuring the quality of child care and education at private preschools.