As a new artistic expression medium in modern urban spaces, public interactive installations are dedicated to constructing a dialogue between people and works. Through the reconstruction of spatial elements, the way of thinking and behavior of people is changed, and people and the city is connected. However, the existing interactive Installations tend to become more homogenized, fail to essentially promote the emotional enhancement of participants, and lack a deep connection with users. Based on emotional design, interactive ritual chain and positive resonance theory, from the interactive behavior itself, the main factors affecting the emotional experience of participants and the path of the factors are explored to construct the emotional factor model of interactive Installations. Studies have shown that interactive rituals positively affect the subjects' emotional experience, and positive resonance indirectly affects the subjects’ emotional experience. As a moderating variable, the experience threshold plays a moderating role between interactive rituals and emotional experience, and also plays a moderating role in the mediating role of positive resonance. At the same time, individual differences in experience have higher requirements for positive resonance, and the degree of experience threshold is negatively correlated with the mediating effect of positive resonance. This result provides a new thinking direction for the design of interactive installations that emphasizes interactive participation.