Abstract: To investigate effects of drought stress on chlorophyll content and morphological indexes of potted triticale,chlorophyll content,over-ground biomass,under-ground biomass,height,spike length,spike weight and ratio of stem to leaf were determined under drought stress and irrigation treatment,respectively.The drought stress significantly decreased the over-ground biomass,under-ground biomass,height,spike length and spike weight of the potted triticale,but it did not change the ratio of stem to leaf significantly.Under drought stress,the contents of chlorophyll A,chlorophyll B and chlorophyll decreased remarkably in nutrition moment,but these three indexes showed a declining trend but did not decrease significantly in procreat moment.