Mount Tai, although located outside of Korea, has had a profound influence on the Korean language, literature, and culture due to the spread of Chinese culture. As an important part of Korean classical literature, Chinese poetry of Korea was also deeply influenced, particularly during the Joseon Dynasty. Numerous poems related to Mount Tai were written during this time, which transcended geographical boundaries and constructed a unique cultural symbol. Therefore, this paper employs Peirce's semiotics theory to analyze the imagery of Mount Tai in Chinese poetry of the Joseon Dynasty. The imagery of Mount Tai in Chinese poetry of the Joseon Dynasty can be categorized into the icon, the index, and the symbol according to Peirce's semiotics. The diverse objects, representamens, and interpretants represented in these categories reflect the poets' perception and understanding of Mount Tai. Poets of the time constructed the icon of Mount Tai through landscape writing, which reflected their admiration and yearning for China. Simultaneously, poets also paid close attention to the unique mountain culture of Mount Tai, utilizing it as the index of Confucianism and Fengchan culture, symbolizing their respect for Confucian sages and their judgment of ancient Chinese emperors. Moreover, influenced by the traditional natural aesthetics of ‘moral analogy’, poets abstracted the imagery of Mount Tai into the symbol of ‘high’, ‘heavy’, and ‘big’ attributes.