With consideration of the practical engineering in middle and primary schools in recent years and the electrical load characteristics of such schools,the capacity indexes for transformers of multiple middle and primary schools and the load factors of transformers in different seasons have been summarized here,field visit and survey have been conducted at several middle and primary schools that support non-resident students and resident students,the load data of the transformers of some of the schools and the schedule arrangements of different middle and primary schools have been collected,and the precautions for design of distribution system for middle and primary schools are clarified here.