Of course, custodians need off-campus training, and such training requires continuous training. After all, an excellent principal. If you want to be a good custodian, you need to constantly understand the relevant policies, but also pay attention to the operation direction of the custodian and the changes in parents' needs. These are the key factors that affect the development of the custodian. The principal training of the custodian institution can be improved, with professional courses and a clear understanding of the custodian policy market, which can make the start of the custodian institution easier and easier.