This study was designed to explore the effect of computer assisted language learning method vs. traditional teaching method in teaching English to students with hearing impairment at secondary school level. It was experimental research based on pre-test and post-test and conducted in Govt. High School for Boys Hearing Impaired Students Gulberg Lahore by randomly selected 40 hearing impaired students. The aim of the present research was to investigate, to what extent computer assisted language learning method enhance hearing impaired students’ ability to produce grammatically correct sentences of the cognitive domain. After conducting experiment for 9 weeks, a post-test was conducted and data was analyze by applying pair-sample t-test, chi-square, and independent sample with the help of SPSS software. It was found that the hearing impaired students who were taught via CALL method of teaching had more ability to produce grammatically correct sentences of all learning level of the cognitive domain than the students who were taught via traditional method of teaching. Furthermore, it was also found that the students who were the experiment group were able to solve all level of questions based on grammar of cognitive domain while students of control group performed up to application level of cognitive domain.