This study aimed at comparing the effectiveness of some instructional/remedial strategies ( PECS, DTT, and TEACCH) in improving four autistic children with age means 69,25 months and IQ 90,25 ,using a set of training sessions administered individually according to a specific strategy. The present study is based on the A-B Design,. The study result revealed using more than one instructional / remedial strategy at the same time was more effective in improving some of the autistic children intended in the present study