The purpose of the study was to investigate the effect of using Project-Based Learning (PBL) method in improving SS1 students’ performance in reading comprehension in Benue State, Nigeria. Three research questions were answered and six hypotheses were tested at 0.05 level of significance. The study adopted quasi-experimental, pre-test, post-test, non-equivalent, non-randomised research design. A sample of 73 Senior Secondary One (SS 1) students was obtained from the population of 3,925 students using multi-stage sampling technique. Data were collected using Reading Comprehension Performance Test (RCPT). The RCPT had the reliability coefficients of 0.76 using Kuder Richardson (K-R 20). Data were analysed using mean and standard deviation to answer the research questions and analysis of covariance (ANCOVA) to test the hypotheses. The findings showed significant