With extensive information technology and related knowledge and experience, Dr Tang is committed to social and community service. As a Justice of the Peace, she is enthusiastic when participating in various social services, including visiting elderly homes, correctional institutions, rehabilitation Centres, or being the supervising guest for the Mark Six Lottery.

Dr Tang has organized numerous youth activities in the community to help underprivileged groups make use of information technology to upgrade their skills. She has also served as a district council member for many years and has assisted community development. Dr Tang believes that the development of society should be "people-oriented". She always keeps this in mind as she serves the community with her professional knowledge.