Exploring how to use interactive design thinking to create better products， services and experiences. From the point of view of behavioral logic， describing how to build more satisfactory user experience through five elements of interaction design， and will give some cases to analysis it.In many cases，the object of design is no longer a single product， but the feeling and action in the task flow when they using the product. The goal of design is to help people be more enjoyable and successful to complete a specific task， and give them more meanful experience.