According to the needs of special children, the placement methods are different, and those with less needs are placed in ordinary kindergartens; Some of the more needed ones are placed in comprehensive kindergartens, but they will go to institutions for rehabilitation training. Some of them are studying in the hospital.

The manifestations of mentally retarded children mainly include: inattention, learning difficulties, poor acceptance, weak willpower, poor communication skills, poor memory, poor language skills and slow motor development.