This study is specified in demonstrating the effect of one of our language phenomenan wich is called " Al itbae Al Haraki " i.e. " Vowel Harmony In Arabıc Language-Quranıc Readıngs ( Alqıra'at Alquranyah. The thesis is contented with those features of the language that have been effected by the vowel harmony and wich are caused or resulted because of the neighbouring ( AlTajawer ) of short or long vowels ( elif , waw , yae ) I . e . ( a , o , I ) and the neighbouring of vowel letters.