Taiwan has an abundance of the environmentally-friendly resource bamboo, as well as long-standing Chinese bamboo customs and culture. As a result, modest bamboo furniture accompanies the simple life of Taiwan’s residents. However, as people prosper, consumers are beginning to choose bamboo furniture for its decorative design and style more than for its practicality. Therefore, the symbolic application of decorative art is worthy of research and discussion. The purpose of this research is to use codes to explore the decorative design of bamboo tube furniture and enlighten Taiwan’s new direction of bamboo furniture design in the future. Through literature content analysis, field expert interviews, and practical experience participation methods, in addition to using function codes, emotion codes, transmission codes, and identification codes to interpret the Han Dynasty’s Liushu and Chinese bamboo cultural content, we verify the relevance of the code and bamboo furniture decoration and provide interactive new thinking and creative products.