The existence of museum display information is based on the process of interaction between objects and people, and the communication process is conveyed and communicated through language and non-verbal. The exhibition of cultural relics in museums not only focuses on the description of the objects themselves and the transmission of their functions, but also needs to place the cultural relics in the context of the cultural context and interpret them, that is, they are composed of common or systematic symbols and meanings, including colors, shapes, sounds, characters and other visual and The auditory element uses similar or simulated images and contrasts to form display codes to assist in the communication and communication of cultural relics. This article takes the "Ancient Weapons Exhibition" as an example to discuss how to construct the cultural relic display code, communicate and communicate, and understand the audience's cognition and response (decoding) to the display code. Investigate and analyze, and discuss the communication benefits of display codes from the perspectives of display space, cultural relic information, cultural relic awareness, etc.