Reading has many beneficial effects in language acquisition. It is supported by Chang and Gould (2008) who explained that reading facilitates language development. It means that the more a person reads, the more they will develop their language like grammar and vocabulary knowledge. This research aimed to find out the habit of reading journal article of the students in EED of UMY students’ batch 2013, reveal the vocabulary mastery of the students in EED of UMY students’ batch 2013 and identify the correlation between the habit of reading journal article and 2013 EED of UMY students’ vocabulary mastery. This research used a descriptive quantitative research to find the correlation. The population numbers of this research were 194 students batch 2013. The sample of research was 49 students. Moreover, this research used two instruments namely questionnaire and vocabulary test. This research also used the validity and reliability test. The analysis technique used product moment correlation. The research found that the students of EED of UMY batch 2013 had in average categories in the habit of reading journal article. It was supported by mean value in the habit of reading journal article of 2.02. Furthermore, the research also found that the students of EED of UMY batch 2013 were in the fair categories of vocabulary mastery. The last result showed that probability value was 0.537 and the number of significant correlation in this research was 0.090 which was in very low in correlation category. It means that the correlation between the habit of reading journal article and 2013 EED UMY students’ vocabulary mastery is not significant and in very low in correlation category.