Using Text Mining, the purpose of this study in to investigate the research trends in Bystander at Cyberbullying. For this purpose, 54 KCI articles on Bystander at Cyberbullying in the past 24 years selected and final 733 keywords were extracted on the abstract. Analysis of unstructed data utilized NetMiner 4.5 version to conduct Semantic Network Analysis and Topic Modeling Analysis. The main results are as follows: Keyword Occurrence Frequency was high in the order of ‘Victim’, ‘Influence factor’, and ‘Bully’ while keyword sets were high ‘Bully-Influence factor’ and ‘Influence factor-Adolescent’; According to degree and betweenness centrality analysis, core keywords, ‘Influence factor’, ‘Role behavior’, ‘Adolescent’, ‘Bully’, ‘Victim’, ‘Sexual’, and ‘Untact’ ranked within top ten, respectively; After Topic Modeling Analysis, 5 topics were the most suitable. Base on these results, Academic directions and policy implications for research in Bystander at Cyberbullying were presented.