He is most known for his integrative work on death acceptance,[2] meaning therapy,[3] and second wave positive psychology (PP 2.0).

With more than 300 publications in journals and book chapters, his major books are the two editions of The Human Quest for Meaning: A Handbook of Psychological Research and Clinical Applications (1998) and The Human Quest for Meaning: Theories, Research, and Applications (2012), as well as The Handbook of Multicultural Perspectives on Stress and Coping (2006).

Afterward, he founded the graduate program in counselling psychology at Trinity Western University in the early 1990s.

During his tenure, he started a neighbours-together program and received a Cultural Harmony Award from VanCity for his community outreach.

Through a variety of intermittent reinforcement and punishment schedules, he taught animals persistence in overcoming prolonged failure.

[10][11][12] This series of research provided an animal model of the positive psychology of optimism and grit as well as the empirical basis for his deep-and-wide hypothesis of negative situations.

[14] In the area of social cognition, Wong's main contribution was the demonstration of spontaneous attribution, both causal and existential.

[15][16] As well, Wong demonstrated that internal and external control are two separate dimensions rather than opposite poles on the same continuum.

[17] This finding later led to the development of the dual-system model of adaptation[13] and the dialectical approach to positive psychology.

[49] At the ninth Biennial International Meaning Conference, he organized the first Second Wave Positive Psychology Summit.