In my younger brother’s cognition that one timeworn classical sofa is much valuable than one so called master designer’s classical sofa. For my mother, the timeworn sofa is super precious than anything else because it is even older than my younger brother which exists in our house for a long time since my younger brother hadn’t been born. The timeworn classical sofa gives us a lot of good memories. If we don’t have any life experiences connect to our cognition or knowledge we learned then we won’t have perception on things or on products. Conversely, if we have same experiences connect to our cognition or knowledge then we could response to it sympathetically. If one master designer’s classical sofa is different from our old perception which might be attract our attention. This research is using Gestalt psychology’s behavior and environment to be the background, then discuss how human being to acknowledge from chair’s shape, further to re-organize and analysis current products. This research divide into two design ways: 1. cognitive conflict application technique 2. feature image application technique. The cognitive conflict application technique contains: material cognition, structure cognition, usage situation, symbol image. The feature image application technique contains: material, texture, colors, structure & symbol image. This research is using the feature imagine application technique to create one piece 1:5 scale model then discuss the real model has any design weak points or wrong theory need to adjust. This conclusion from the research could be the reference information for the designer. This method could help designer to build up the element for initial period design rapidly. It could help designer or customer know the visual effect and reduce time and cost during this period of time.