Abstract: With economic development and urbanization process,the farmland reduce day after day in Wuxi,so the grain production can not meet local consumer demand, and self-sufficiency rate only about 45 percent.The food security situation is severe in Wuxi.In order to ensure food security, the government of Wuxi has taken a number of measures.This article discussed the food security issues of Wuxi from the perspective of the grain logistics.Through the analysis we can be concluded that the food security system of Wuxi based on logistics was successfulll,but there are also some shortages, such as high cost,lacking measures based on system,and so on.