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Generalized fuzzy numbers can deal with uncertain information in a more flexible manner than that of normal fuzzy numbers. In this paper, a food safety risk analysis model based on generalized fuzzy number,is proposed. First, a modified similarity measure is proposed. Then, the food safety risk analysis model is presented step by step. The modified operation rules on generalized fuzzy numbers have been presented. Finally, a risk analysis numerical example on food safety is used to show the efficiency of the proposed method.