The method of test paper analysis was used to study the reading ability in such five levels as words, sentences, rhetoric, paragraphs and text comprehension. The subjects were 265 third-year, fotuth-year and fifth-year students with mild intellectual disabilities learning in regular classes, and 634 normal students in the. same grades who served as the control group. The results showed the following. Compared with the control group, the students with mild intellectual disabilities learning in regular classes had a very poor reading ability, which varied from individual to individual. The main reason for this is the insufficiency of basic knowledge, read- ing skills, and intelligence and non-intelligence factors.