Emotional disturbance is a psychological situation in which one's feelings are heightened, causing anxiety to set in. This disturbance can lead to low academic achievements in affected students. It takes away children's attention from realities and this affect their academic, character and skills development that are of benefit to the individual emotionally disturbed student and his community. Bibliotherapy is one of the solutions to emotional disturbance and as a problem-solving skill of counsellors, bibliotherapy will be understood if applied to students at the secondary school level, a time they can read and assimilate content of therapeutic material in a book. Causes of emotional problem in children are many and come in different ways, ranging from death of loved ones to reasons that make children become disturbed. A survey research designed was used to obtained respondents' opinion on perceived effect of problem-solving skills of counsellors on emotionally disturbed students in public secondary schools in Ogun State, Nigeria. A sample of 267 respondents, gave a grand mean of 4.50 and a standard variation of 0.607 established the effectiveness of bibliotherapy problem-solving skills of counsellors. The study concluded that bibliotherapy is a problem-solving skill of counsellors on emotional problems.