Safeguarding intangible cultural heritage such as traditional painting is getting more critical, but the conventional way to preserve intangible heritage has been to simply record the performance and explanations of Living Human Treasures using video cameras. It cannot preserve the whole procedure and detailed performances of human experts. In this paper, we suggest a multisensory system that captures the core activities of Korean traditional painting while minimizing interference with their activities. The system captures the whole procedures of the activities by tracking the three-dimensional movements of the painter and the brushes, and recording information of the pigments and canvas. We captured the activities of two professional painters and analyzed the brush movements in various ways.