This study aimed to explain the effectiveness of personal vocabulary notes technique to enrich student’s vocabulary in narrative text at the eighth graders of MTs N 3 Demak in the Academic year of 2019/2020. This research was quantitative research and the research design used experimental research. The sample in this study was students of class VIII-4 as an experimental class of 30 students and class VIII-3 as a control class of 30 students. The data collection technique used in the form of tests (pre-test and post-test). The collecting data was analyzed using statistical analysis. The formula to analyze the data was used t-test. It was used to determine whether there was a significant difference between students’ scores in experimental and control classes. From the analysis of the final data obtained t count = 64.39 and t table = 2.042. It showed t count > t table means the proposed hypothesis is Ho was rejected and Ha is accepted. It means that there are significant differences in learning outcomes of students who use the personal vocabulary notes technique to enrich student’s vocabulary in narrative text. Based on the statement above, it can be concluded that using personal vocabulary notes technique is effective to enrich student’s vocabulary in the narrative of class VIII MTs N 3 Demak in English subject. Based on the results of this study, it is expected to be an information material, motivation and input for educators (teachers).