This study analyzed trends and contents of ancestral ritual foods of Korean traditional Jong-ga as a domestic thesis. In searching the keywords related to ancestral ritual foods using a thesis search site, a total of 15 theses in seven journals were selected for analysis. Three theses from 1996 to 1999, six theses from 2005 to 2008, and another six theses from 2012 to 2016 were announced. In measuring frequency by dividing case families analyzed in the thesis into region, there were 83 families, including seven families from Gyeonggi (8.4%), seven families from Chungcheong (8.4%), two families from Honam (2.4%), and 67 families from Yeongnam (80.8%). Fifty-four families out of 67 families from Yeongnam were located in Andong-si, occupying 65.1% of the 83 families. The family showing the highest frequency was ‘Seoae Jong-ga’ (12 times). The family clan with the highest frequency was eight families of the ‘Jinseong Lee clan’ In the future, it would be necessary to understand the research flow through analysis of research trends in ancestral ritual foods of Jong-ga as well as interdisciplinary research and methodological diversification of studies on ancestral ritual foods of Jong-ga.