Critical thinking skills are an important aspect in learning Physics which often becomes a challenge for students. This research aims to evaluate the effectiveness of using learning videos as a tool in improving students' critical thinking skills in physics learning. This research used an experimental approach with a research sample of 50 physics education students who took the Basic Physics course at Kanjuruhan University Malang as an experimental class. The research design used was one group pre-test - post-test design. The research results show that learning videos make a positive contribution to improving critical thinking skills and student learning outcomes. The use of learning video media makes it easier for students to achieve learning goals, supports understanding of concepts, and increases students' interest and imagination. Apart from that, this research also reveals that video-based learning models, especially those that adopt the PBL (Problem-Based Learning) approach, are effective in developing students' critical thinking skills in physics. Critical thinking skills are an important element in solving physics problems in everyday life. This research concludes that learning videos are an effective tool for improving critical thinking skills in physics learning. The implication is that the use of learning videos can enrich students' conceptual understanding and problem solving abilities in physics subjects.