This study is mainly to research interactive exhibition and family-group visitors between the relationships with behavior. It attempts to explore all of audience’s behavior occurred in the exhibition space via non-participating observance. The research area including the physics and mathematics exhibit of the science center. Particularly, we focus the family-group visitor’s attention on the behavior interaction and learning interaction to observe the relationship with interactive exhibition. The observance finds that it is the family-group visitors prefer to the exhibition near the entrance. Good interactive exhibition has its effect to the learning of family-group visitors than other exhibitions. In part of time, the family-group visitors is spend to the rest and other things. Most of the parents.