Abstract: The current annual rainfall situat ion of china dry-land agricultural region is relatively low, and the water use efficiency is relatively poor. As a result, the broom corn millet is the major crop for dry-land agricultural region because of it has drought tolerance and barren resistance characters. In order to against this situation, the experiment is aimed to research the effects that the growth, development and output of broom corn millet have been affected by the different irrigation stages and irrigation water use. The experiment was using the variety of Neimi5 to make the different irrigation water use test. Then sampling and measuring the physiological measure, morphological index and output during the major growth period（tillering stage and booting stage）. The results have been shown as：The NO.12 treatment has the highest data than other treatments,especially on average height, leaf area and dry matter accumulation aspects. In addition, the average height, leaf area and dry matter accumulation of NO.12 treatment were higher 6.0%, 11.1% and 14.3% than NO.9 treatment on tillering stage, and11.1%, 5.6% and 10.1% on booting stage. chlorophyll content of broom corn millet has significant difference during the tillering stage. The NO.12, NO.6, NO.2 and NO.9（CK） have the most significant difference with each other as well as NO.12 has the highest chlorophyll B and chlorophyll numbers. The malondialdehyde（MDA） content of NO.12 treatment has the most significant difference which the content is quite lower than CK treatment. The outputs has difference between different treatments. NO.12 treatment has the highest outputs which are 6 387.0kg/hm2, it was increasing 7.6% than CK. To conclusion,the irrigation experiment of NO.12 treatment could increase the outputs and drought tolerance of broom corn millet.