The purpose of this study is to suggest a new method to measure food security index(FSI) of Korea properly reflecting new trends of food security concept which includes food security of global level, national level and houshold or individual level. The new approach of this study is to integrate the merits of the two approaches of FSI, i.e. an euation based approach with major components of food security and a score card approach with many different indicators for food security; the former has merits in simplicity while ther latter in realities. The new FSI of Korea in 2009 is relatively low such as 53.3 out of 100. The low FSI is seemingly caused by low self-sufficiency rate, low grain stock rate, low effectivity of overseas agricultural development, and low security of household and consumers due to high increase of food price.