Abstract represents oral expression; It is one of the most important basic means of learning in the early stages of education، and one of the most common language arts، and it plays an essential role in the educational process، while students with reading difficulties encounter concrete difficulties in tasks that require oral expression، and the current study have aimed at developing the language output to improve oral expression among the fifth primary grade students with reading learning disabilities in Arabic by preparing and applying a training program based on the strategy of what I know- want and learn، verification of its effectiveness in achieving the desired goal، and identification of its continued effectiveness after its termination، In order to achieve the goal، the pilot curriculum was followed، the sample of the study consisted of (16) students divided into two equivalent groups، one experimental (8 students)، and the other was control one (8 students). Moreover، the Stanford-Benet scale was used to measure the intelligence (the fifth edition)، rapid Neurological survey test prepared Mustafa Kamel (2007)، diagnostic scale battery - difficulties of reading prepared by Fathy Elzayat (2009)، the oral expression measure of students with reading difficulties " (Adel Abdullah، Amany Ahmed)، the results of the study have revealed the effectiveness of the program on enhancing oral expression skills in students with reading learning disabilities in Arabic in the pilot group. The improvements continued for the pilot group in the tracing measurement، and the study concluded the significance of the strategy of what I know- want and learn to ameliorate the vocabularies to enhance the oral expression of the students with reading learning disabilities in Arabic. Keywords: Reading learning disabilities - Oral expression - Strategy of (what I know- want and learn).