In this study, the data from Korea National Health and Nutrition Examination Survey (KNHANES) was used to find out the relationship between breakfast patterns and suicide ideation of Koreans. This study used data from the 6th (2013-2015) and 7th (2016) of the Korea National Health and Nutrition Examination Survey (KNHANES) to analyze 8,508 participants, excluding those without information on breakfast frequency, age, gender, region, income levels, education levels, marital status, subjective health status, and drinking frequency for one year. The frequency of breakfast is classified as “5 to 7 times a week”, “3 to 4 times a week”, “1 to 2 times a week”, and “Rarely” (0 time a week). Whether breakfast accompanied by family members and non-family members was classified as “Yes” or “No” through a self-reported response to the question, “Did you eat with other people for most of the time when having breakfast during the past year?” When asked if he had seriously considered suicide in the past year, the answers were “Yes” or “No” through self-reported response and analyzed it through a chi-square test and multiple logistic regression. Analyses of associations after adjusting the correction parameters such as age, gender and income levels showed that the risk of suicide ideation was statistically significantly 1.41 times higher (OR: 1.41 95% CI 1.09-1.84) in the unaccompanied group, compared to those accompanied family and non-family members at breakfast. Also, the analysis of stratification by age showed that the risk of suicide was 1.45 times higher (OR: 1.45 95% CI 1.04-2.03) in the unaccompanied group, compared to those accompanied family and non-family members at breakfast. With the results of this study, it is necessary to seek ways to ensure that breakfast can be accompanied by family and non-family members, as well as efforts to reduce the rate of skipping breakfast.