The reason is to solve the problem of difficult care for parents. The Notice of the Ministry of Education on Supporting the Exploration of Summer Custody Service and the Notice of the Shandong Provincial Department of Education on Doing a Good Job in the Holiday Custody Service for Students in Compulsory Education Stage point out that the summer custody service aims at the students in compulsory education stage who have difficulties in family care during the winter and summer vacations, adheres to the principle of who organizes and who is responsible, and clarifies the rights and obligations of all parties. Therefore, Liaocheng Open School is a summer trusteeship.