In church building, the worship space performing practical rituals and making a place of friendship and education has a role to accept the changing services with the times. And it is also distinguishable from the chaotic surroundings and is the space for religious experience of christian identity we cannot experience in our daily life. Therefore it is very important to investigate its characteristic as the space for religious experience. The important purpose of church building is to make up a worship space, and the chancel in worship space is said to be the core in church building, the center of all worship acts. Especially, today with the tendency of multi-functionalizing and opening in worship space, the chancel in worship space has a more special meaning as spatial, functional and symbolic center. The purpose of this study, with the worship space in domestic protestant churches, is to make up basic data for the worship space plan and interiordesign in church building by analyzing the characteristics of interior design for chancel, the core field of worship space. This study has researched the constituentcharacteristics of interior design for the chancel in worship space in domestic protestant churches in 10 years from 1995 to 2004. And found the worship space opening and multi-functionalizing with the changing times. From now on, the study on interior design for creative worship space should be researched positively for the purpose of expressing the christian identity and the opening and muti-functions, on the basis of christian theology.