Abstract: As an issue of catholic concern that is related closely to people’s livelihood, the food prices have received much wider attention in recent years. Based on the relevant data concerning people’s CPI of the first three quarters in 2011 in Sichuan, an analysis is made on the impact of foods on people’s consumption acts. After a theoretic elaboration and test through practice, two principal factors that result in price fluctuation have been spotted and corresponding counter-measures are put forth.