干旱胁迫是影响植物生长发育的主要逆境因子之一，从形态指标、渗透调节、活性氧清除、内源激素、胁迫诱导蛋白等方面对作物耐旱生理及其分子机制研究进展概述，以期为我国抗旱农业研究与生产提供一些思路。

Drought stress affects plant growth and development seriously. This paper introduces the Physiological and molecular mechanism and the research progress of crop drought tolerance in configuration, osmotic adjustment, scavenging oxidative radicals, endogenous hormones，stress protein, Which could supply several new approaches to research of resistance to drought for water-conservation agriculture in our country.