The main objective of this study is to identify main household demand parameters in Turkey with respect to different food groups. In addition, as for the importance of this study for Turkey, it reveals the expectation that despite advanced technological developments in the globalized world of today. This is important, because food shortage, insecurity, and consumption will continue to be a challenging problem in Turkey’s economy as well as in the global economy. In this study, price and expenditure elasticities were calculated by applying to the Almost Ideal Demand System (AIDS) approach to expenditure data for the food group acquired by the Household Budget Surveys (HBS) from 2002 to 2011. Household Budget Surveys (HBS) data were used in this study. Price and expenditure elasticities in Turkey under food group for divided five income groups were estimated using the An Almost Ideal Demand System (AIDS) approach. According to the findings obtained price and expenditure elasticities by food group for divided five income groups were calculated. Computed price elasticities using the AIDS model are were found to be in good agreement with economic theories. At that time, price elasticities are negative. Our analyses demonstrated that food group elasticities for all income groups examined in this study were normal goods. While the lowest price demand elasticity was observed in second %20 income group, the highest price demand elasticity was observed in fifth %20 income group. In line with this, it is possible to say that consumers are more responsive to price changes. In this respect, we can say that Although fifth %20 income group is more sensitive to food price changes, second %20 income group is less responsive to this food price changes.