This study sought to identify unique semiotic codes of Korean cuisine, including table settings, service styles, service wareselection, cooking techniques, and the logic behind menu composition. This research also aimed to verify thatyangnyomjang reflects the code of Korean food culture. One of key findings from this study was that hidden codes of Koreanfood were found in their daily set-up for bapsang (dining table), which was found to decodify polysemic characteristics withan emphasis on harmony. These semiotic codes were influenced by the yin and yang philosophy and impact diningactivities in our daily lives. Korean bapsang, composed of bap (rice), guk (soup) and banchan (side dishes), helps everyindividual diner share the semiotic codes of Korean cuisine within the context of paradigm and syntagm. Yangnyomjang, amajor component of the Korean menu, also represents a unique code of Korean cuisine in its structure, main ingredients,production, and usage. This study also mathematically verified that a synchronic table setting of Korean cuisine providesdiners with more opportunities for potential flavor combinations, compared to the Western service setting.