The study aimed at identifying the impact of employing brainstorming strategy on improving writing performance of English Major Students at Balqa Applied University in Jordan. The sample of the study which consisted of 80 male and female university students was distributed into two groups; experimental (taught by brainstorming strategy) and control (taught traditionally). The instrument for collecting the data was writing essay. The data were analyzed by using t-test. The analysis showed that the scores of the students of the experimental group were significantly higher than the scores of the students in the control group indicating the positive impact of employing brainstorming strategy on improving writing performance of English Major Students at Balqa Applied University in Jordan.