A roundtable forum was organized by the Centre for Communication Research (CCR) and the Research Cluster on Computational Communication Research of Department of Media and Communication on Sept 20, 2021 focusing on What, Why and How to Do Computational Research. Chaired by Prof. Jonathan Zhu, Director of CCR, the forum showcased the ongoing projects conducted by six members of CCR, including Dr. Guanxiong Huang, Dr. Crystal Jiang, Dr. Ji Won Kim, Dr. Xiaofan Liu, Dr. Xiaohui Wang and Prof. Zhu, involving the application of computational methods to advertising, health communication, interpersonal relationship, and social media research, followed by a lively discussion with more than 100 audience members who tuned in either face-to-face or online.