The objectives of this qualitative research were to study the current state, problems and expectations, and guidelines for development of quality assurance in an early childhood development center: A case study of Sila town municipality early childhood development center, Khon Kaen. Using the document studies, observations, in-depth interviews, focus group discussions and data feedback. The key informants were 44 stakeholders; administrators, teachers, education personnel, early childhood development center board comittees and parents. The research instruments were field note, observation form and in-depth interview. Validate the tools by conducting a content validity review from 3 experts. Data analysis by using content analysis and triangulation methods.The results found that : 1.The current state and problems, teachers and caregivers lack of knowledge and skills in various fields such as preparation of educational development plans and other related plans, establishment of school curriculum, writing instructional plans and preparation of information about children. Most caregivers do not have early childhood education and do not have a professional teaching certificate. The early childhood development center board comittees lack of participation in the implementation of the roles and duties as they should be. And the quality assurance system was in an urgent need to be improved. 2. In the expectation, it was found that the stakeholders need to improve and develop the internal quality assurance system to be more reliable in order to be ready for the fourth round of external quality assessment. There should be training seminars to increase knowledge for teachers and caregivers in the educational development plans and other related plans, establishment of school curriculum, writing instructional plans and preparation of information about children. There should be encourage and support caregivers who do not have early childhood education qualifications and do not have a professional teaching certificate for self-development and professional development. Providing an opportunity for the early childhood development center board comittees to have more roles and participate in the operations of the child development center according to their roles and duties. 3. As for the guidelines for development, it was found that there should be a need for a systematic plan for the development of internal quality assurance systems. Establish training programs for teacher and caregivers development in various areas such as the development of educational development plans and other related plans, school curriculum, instructional plans and preparation of information about children. Provide and support caregivers who do not have early childhood education qualifications and do not have a professional teaching certificate for self-development and professional development, and provide and support the early childhood development center board comittees to have more roles and participate in the operations of the child development center according to their roles and duties.