This research aims to determine the effectiveness of metacognitive reading strategies on reading comprehension of high school students. The participants in this research were 50 high school students in their first year. The research was carried out using pre-tests and post-tests on participants. Participants were given metacognitive reading strategy treatment for three weeks with teacher guidance. Data analysis compared the participants' pre-test and post-test results using the paired sample t-test. The test results obtained a pre-test mean of 55.40 and a post-test mean of 86.60, and p = .000 (<.05), it can be concluded that metacognitive reading strategies improve reading comprehension for high school students in the first year.