中文摘要：

主要介绍了食用油脂的三大改性技术（油脂氢化、油脂分提和油脂酯交换）在国内的应用,并对它们的发展进行展望。

英文摘要：

The advance and application of three kinds of modification technology of ediable oil, which were hydrogenation, interesterification and fractionation, were introduced in China, and the trends were discussed.