中文摘要：

利用E-G指数,对我国4位数水平分类的粮油加工业集聚水平进行实证分析,并在从空间和行业两个维度研究粮油加工业不同行业的集聚特征及集聚成因。研究发现：我国粮油加工业行业集中度整体较低,行业集聚主要由区域集中度决定;粮油加工业的地理分布受农产品原料地理分布的约束较大,粮油加工业大多数行业仍然以主产区集聚为主要特征,且呈上升趋势;除粮机设备制造业外,粮油加工业企业规模普遍较小,市场份额相对均匀,较多小规模企业在某一地区＂扎堆＂是我国粮油加工业集聚的主要表现形式。

英文摘要：

Based on E-G index,the paper empirically studies the agglomeration in China＇s grain and oil processing industry at 4-digit industry level.Then the features and causes of industries agglomeration are discussed from the industry and spatial dimension.The results show that： the industrial concentration of grain and oil processing industry is relatively low and the agglomeration is mainly determined by spatial concentration; the geographic distribution of the industry is still restrained by the region＇s material resources,so producing area agglomeration is the main feature,which is taking on an upward trend; except grain equipment manufacturing industry,most grain and oil processing enterprises are small in size wit many small firms clustering in some region being the major form of agglomeration in China＇s grain and oil processing industry.