A questionnaire concerning the putting on and taking off of clothes, socks and shoes of children with intellectual disabilities was given to their parents or guardians, mainly their mothers. The authors aimed to find ways of providing effective support through continual observation and case studies. The results of this study are as follows: (1) With regards to support, the surveyed children were classified into 5 groups according to the time they entered the school and the type of disability they had; (2) The parents or guardians have been able to teach their children to correctly identify the front or back of shirts, the top or bottom of socks and the difference between a left shoe and a right shoe; (3) Some visual effects were recognized in the case studies, namely the colored buttons on the bottom of a shirt, the colored heel or toe of socks and the colored elastic strings attached on the same side of shoes and the wrist; (4) The authors considered the necessity of developing effective support programs to help children with intellectual disabilities put on and take off clothes through joint studies and exchanges between specialists, teachers in charge of special classes for children with intellectual disabilities and clothing science scholars.