This study investigated the effectiveness of group work in improving students’ reading comprehension at SMP N 2 Tondano. The research was motivated by the observation that many students struggled with reading English texts and demonstrated low comprehension abilities. Using a pre-experimental quantitative design, the researcher administered a pre-test and post-test to a sample of the available 18 out of 30 seventh-grade students due to their tardiness. The intervention involved group work activities that aimed to foster collaboration and active participation during reading lessons. Data were collected through multiple choice, matching, and completion tests, and were analyzed for reliability and validity. The findings showed a significant improvement in students’ reading comprehension after the implementation of group work, as indicated by higher mean scores in the post-test compared to the pre-test. Statistical analysis using a paired-samples t-test confirmed that this improvement was statistically significant. The results suggested that group work was an effective strategy for enhancing reading skills among junior high school students. However, the study also found that some students continued to face challenges, indicating the need for differentiated instruction and ongoing support. Overall, the research highlighted the value of collaborative learning in the English classroom and recommended the integration of group work strategies to improve reading comprehension.