There were many researches about online classroom participation in any subject, but it was rarely research about online classroom participation in Advanced Reading Comprehension subject. This study described and analyzed the online classroom participation of EFL students in Advanced Reading Comprehension subject. The class was conducted in Zoom and Google meeting platform. The study applied a descriptive qualitative method. The researcher collected the data through non-participatory observation with 7 lists of observing. In addition, to support the observation, the researcher did the interview with 8 questions for 37 EFL students who would willing to help to collect the data and 6 questions for 1 lecturer who took responsibility of Advanced Reading Comprehension subject. The finding revealed that EFL students quietly did not participate and take part online actively. Moreover, the researcher found some factors that made the EFL students did not participate well. The factors were too many assignments, too many materials and many words or vocabularies that they did not understand, and home condition when following Advanced Reading Comprehension subject like there was no signal in their village and the noise of their home situation that they could not focus to participate the online classroom. A summary outlining the features of resulting online participation and discussion alongside learning outcomes and lecturer goals was lacking to show.