This study aimed to know reading English novel habit among English Language Education Department (ELED) students in a private university of Yogyakarta, English sentence structure mastery among ELED students in a private university of Yogyakarta, and the correlation between reading English novel habit and English sentence structure mastery among ELED students in a private university of Yogyakarta. This study adopted quantitative research approach and correlational design using the questionnaire to measure the first variable. The second variable was measured by the score of the structure and written expression section of English Proficiency Test in International Language Testing Class. The data were collected from 91 ELED students of batch 2015. The data were analyzed using descriptive statistics and inferential statistics processed in statistical software. This study used Pearson Product Moment correlation to see the correlation between two variables. Besides, the analysis of the data showed that students’ reading English novel habit was in the moderate level (mean: 43.33), and students’ English sentence structure mastery was in the moderate level (7.25). The result showed that correlation p-value was 0,202 meaning that there was a correlation between reading English novel habit and English sentence structure mastery among ELED students. However, the correlation between reading English novel habit and English sentence structure mastery was r=0.055 (at 0,01 level, sig 2-tailed) which showed that the correlation was not significant.