Sugar is the second most important good in the world after wheat. And it comes in the second rank after rice in Asia, the global average of raw sugar production in 2016/2017 reached about 170.814 million tons. Egypt produced about 2.243 million tons of sugar in 2016/2017, represented about 1.3% of world production of sugar. At the domestic level, the total production of sugar in Egypt in 2017 reached about 2.25 million tons from crops of cane and beet. While consumption was 3.23 million tons, the gap was 0.981 million tons, and individual consumption ratio was 34 kg / year, and the self-sufficiency ratio was 69.63%. that's why the aims of this research is to estimate of strategic stock and food security coefficient of sugar in Egypt, and to study of the most important economic factors affecting the coefficient of food security of sugar in Egypt. The result showed that there is increasing in the adequacy of production for domestic consumption from about 249 days in 2007 to about 254 days in 2017. While, the period of import coverage for domestic consumption decreased from about 203 days in 2007 at about 45 days in 2017. The strategic stock of sugar in Egypt was estimated by 307.62 thousand tons, which is sufficient to cover the domestic consumption for a period of about 39 days. In light of both the strategic stock and the average domestic consumption of sugar, which is about 2883 thousand tons, The food security coefficient of sugar in Egypt is estimated by 0.21 during the study period, consequently, it is necessary to increase the strategic stock of sugar for domestic consumption for 6 months at least, until the value of the food security coefficient reaches 0.5.