vi ABSTRACT The main purpose of this research was to assess factors that affect the students’ motivation to participate in speaking activities in EFL classroom. Descriptive Survey was used. Questionnaire for students, classroom observation and interview for teachers were the tools used to collect data for the study. Nejo Secondary school grade 9 students and English teachers were targeted. The sample of the study consisted of ninety three students and seven teachers. Students were chosen using systematic random sampling technique. Data from the questionnaires were analyzed using quantitative method, but data from the classroom observation and interview were analyzed using qualitative methods. The closed-ended data were analyzed using table, calculating percentage and descriptive statistics (mean) independent samples t-test was implemented. At the end, the data was organized and presented thematically. The finding of this study revealed that there were a few motivational elements practiced to stimulate students in speaking activities, the student’s interest was mostly negatively affected to participate in speaking activities regarding the teachers’ role, the students’ ability and the conditions of the classroom environment and also male students were a little beat more motivated than female students to participate voluntarily in speaking activities in EFL classroom but statistically no significant difference was seen between them. Thus, English language teachers, department leader and school principals should solve the problem in harmony. Teachers should take in consideration about things which harm the students’ motivation related to their role. It is advisable that the English teachers of Nejo Secondary School and others should share experience on aspects of advancing students’ motivation. Finally, the researcher suggests other researchers to conduct further studies in different schools in related topics to make the study complete and to improve the learning and teaching of speaking skills.