Zhenghan Lin's projects focus on social issues, including inequality in urban development, as well as exploring his own personal experiences. His current project aims to capture the act of photographing people as they travel through documentary photography. He photographs other people in front of landmarks, observing their behavioural patterns and discussing the motives and logic behind them. This is also seen as a form of self-examination, mapping himself through others, "to some extent, we are not different".