This research analyzed about multilingualism. More specific again is about language choice in daily conversation. This research aims at describing the use of language choice at Javanese students of English Language Education Department of 6th semester in Education and Teacher Training Faculty of Walisongo State Islamic University in academic year of 2016/2017. The objectives of research are intended to measure that how is the realization of language choice used by Javanese students of English Language Education Department in daily conversation based on the observation, and to investigate the influences of role relation in the choice of language that is used by Javanese Students. This research used descriptive and qualitative method. There were 81 Javanese students as the sample of this research. In this research, the researcher conducted observation, interview and giving questionnaire to collect the data. The questionnaire of this research used 12 domains design by Sumarlan and based on the theory by Fishman to maesure how is the realization language choice used by Javanese student and to know the role relation which influences the choice of language. The result of the research showed that Indonesian language is the highest degree of usage. It is 38.06% of users. In addition, the result of role relation showed that reason d (easier and more suitable to express thought) as the predominant reason in choosing of language. This research gave the benefit for students to know the language that can be the predominant language to be used in their daily conversation based on their reason. And also, the students would know about the role relation that can influence the language choice.