Kairatu Barat is one of the sub-districts in Maluku that produce diversity of local staple foods. In this area, the local food has multiple functions as both staple food and potential business development. This study aims to analyze the potential of food development, food consumption patterns related to the food security, and the factors that influence food security in the Kairatu Barat. The methods that the writer uses in this analysis are Location Quotient (LQ), energy contribution on Desirable Dietary Pattern (DDP), and multiple regression analysis method. The results of this study indicate that sago and sweet potato are the most superior commodities. The LQ value shows that sago is equal to 1.13. Meanwhile the value of sweet potato is 2.04. Moreover, the basic commodities in Kairatu Barat are also become a great business opportunities. The average energy contribution of the respondent households in the grain food group is 1,145 kcal whereas the tuber group is 146 kcal. The energy contribution of staple food in Kairatu Barat is higher than the ideal contribution. In addition, the culture of eating, the division of feeding in the family, nutrition and work knowledges are the factors that have a significant effect on food security
