Student learning methods have changed to online lectures during the pandemic. Of course, this is a new challenge for students to adapt to new learning methods. During the adaptation process, problems arise that give uncertainty. The researcher wrote that this study aims to determine strategies for reducing student uncertainty regarding the information conveyed by lecturers during online lectures. This study uses a quantitative approach with descriptive research type. Researchers collected data using survey methods and carried out sampling techniques using the entire number of samples. According to uncertainty reduction theory, uncertainty can be reduced by communication. The problems experienced by students during online lectures are boredom, technical problems, and difficulty understanding the material. Uncertainty will cause feelings of discomfort therefore humans will tend to be encouraged to reduce uncertainty. Reduction with 3 strategies, namely passive, active, and interactive. The passive strategy is carried out by students observing someone when communicating with others, the active strategy is done by looking for information on their own or asking friends, and the interactive strategy is done by asking directly to the lecturer concerned. Despite facing challenges during online lectures, students managed to find strategies to reduce them.

Keywords: students, online lectures, uncertainty reduction strategies.