1. the development of preschool education: this topic focuses on the development trend and direction of kindergarten education, including the discussion and exploration of educational concepts, teaching methods and educational objectives.

2. Education policies and regulations: This topic involves policies and regulations related to kindergarten education, including the interpretation and implementation of policy documents and laws and regulations issued by the education department.

3. Teacher development and training: This topic focuses on the professional development and training of kindergarten teachers, including the training of teachers' professional knowledge and skills, the improvement of teachers' quality, and the discussion and exchange of teacher training mechanism.

4. Home cooperation and parents' participation: This topic focuses on the cooperation and participation between kindergartens and families, including the communication and cooperation mechanism between kindergartens and parents, and the ways and means for parents to participate in kindergarten education.

These four themes can help experts, education departments, teachers, parents and other participants in kindergarten education to discuss and solve problems in the field of kindergarten education and promote the sustainable development of kindergarten education.