The research aims to identify the grade of kinds aggressive behavior among students hearing impaired in mainstream schools for basic education in the province of Damascus and the knowledge of the differences in aggressive behavior among students according to the variables (gender and grade) . The sample consisted of 41 pupils, were chosen randomly from the province of Damascus, the official schools, and applied to estimate their teachers (26(teacher to identify aggressive behavior, which is prepared by the researcher after verification of sincerity and persistence.