This study aimed at designing a program based on the Pragmatic theory to develop grammatical structure comprehension skills for foreign learners of Arabic and examining its effectiveness. Hence, the problem of the study has been summarized in the weakness of grammatical structure comprehension skills for foreign learners of Arabic and in the need for programs based on new theories to develop these skills; such as the Pragmatic theory. The current study followed some procedures which included: designing a questionnaire on grammatical structure comprehension skills, designing a test on these skills, designing the program, selecting the study sample out of German foreign learners of Arabic in Egypt, applying a pre-test, administering the program, applying a post-test, treating the obtained data statistically, and then reaching results--most significantly the effectiveness of the study program in achieving its aim. The study recommended developing the content and teaching methods of grammatical structures in light of the Pragmatic theory.