Abstract: Taking 120 online teaching research literature in universities collected from CSSCI database from 1995 to 2023 as samples, the evolution process, trend and hot topics of online teaching effect research in domestic universities are explored and sorted out by using systematic literature review and co-word analysis methods. The results show that the research and evolution of online teaching effects in domestic universities has gone through the 1.0 stage of online teaching, the 2.0 stage of large-scale MOOCs construction and the 3.0 stage of full coverage of universities, and the evolution trend shows four development routes. Hot topics include theoretical basis and practice mode, evaluation system and influencing factors, implementing effects and optimization path. The positive effect of online teaching is mainly reflected in “teaching”, “learning” subjects and teaching interaction, while the negative effect and optimization path is mainly discussed from the platform, teachers’ and students’ skills, online teaching design, online teaching management. Finally, the shortcomings of the current research and the limitations are pointed out.

Key words: online teaching effects, research course and trends, hot topics, colleges and universities