The work aims to study he city seats for interactive experience in public space from the perspective of behavioral psychology so as to help people get a short rest in public space and care and satisfaction for psychological needs. By observing people's behavior and psychology in the public space, the strategies and methods of interactive experience of city seats were put forward, and then explained and verified through the specific design cases. Through people's behavioral and psychological needs, the changeable interactive experience is provided to promote good interaction between public space and people's public life, remove negative factors in the positive interaction, increase people's pleasant experience brought about by outdoor leisure, and improve the use quality of public seating.