This research is intended to investigate the effectiveness of interactive multimedia for teaching reading in junior high school. Based on my preliminary research, there were many problems in teaching and learning reading for junior high school students. Seeing those problems, the researcher tried to implement the interactive multimedia in teaching reading. Then, the method used in this research is quasi experimental with test as the instrument for collecting the data. The students’ score was analyzed using SPSS (independent sample t-test). The result revealed that the statistical value of t-test was 4.325 and the degree of freedom of 46 at significant level 5 % was 2.02. It means that the t-value (4.325) is higher than critical value 2.02 (4.325 > 2.02). Therefore, the students who were taught using interactive multimedia had better achievement in reading rather than those who were not taught using interactive multimedia.