Food price inflation has been shown to have an adverse impact on the food security of households, especially net buyers of food commodities in developing countries. The need of conducting this research is basically to examine the effect of food price inflation on food security of urban household’s in Bahir Dar city since there is everlasting increase in food price inflation is observed in Ethiopia and also in cities. It was undertaken by selecting respondents through simple random sampling in proportion from 4 out of around 17 kebeles of the city. Descriptive and inferential statics of data analysis method have been employed. The descriptive statistics used to introduce the background characteristics of the sample respondents and to strength the econometric model results. The result of this descriptive statistics shows that around 151 from 395 respondents are food insecure. Most the sample respondents were respond that there is high food price inflation and this high food price inflation affects negatively the food security of 106 household. Also due to such high food price inflation around 117 households switch his/her consumption from high price food to low-cost food. Furthermore, the marginal effect after logit result shows the probability of the household being food secure decrease by 10.47%, among households who are responding that they are negatively affected by food price inflation than those who didn’t say. Also due to price inflation of staple foods, when the household moves from purchasing main/nutrient full foods to less expensive and poor testy foods, the probability of the household being food secure is decrease by 11.15%. In addition to this if the household size is less, being the household male, having own private house, having the higher monthly income , getting loan, having more saving balance, and being more educated have a significantly probability of being food secure than others.