Abstarct: This research was carried out to investigate the effect of superabsorbent polymer and drought stress on growth and yield of corn (Zea mays L.) in research farm of Shahrood University of Technology in 2017 as split plot baxsed on randomized complete block design with 3 replications, in which drought stress was distributed in the main plots and subplots were allocated to superabsorbent hydrogel. Drought stress levels included: control (7 days irrigation interval; W1), mild drought stress (12 days irrigation interval; W2), severe drought stress (17 days irrigation interval, W3) and superabsorbent hydrogel levels including zero or control (V1) , 75 (V2), 150 (V3) and 225 (V4) kilograms per hectare. The results showed that drought stress reduced yield and yield components and increased the amount of elements and protein content of corn grain. Super absorbent can reduce the negative effects of drought stress on many plant traits such as chlorophyll, catalase enzyme activity and plant height. It should be noted that the interaction of drought stress and superabsorbent levels was significant in traits such as grain yield and biological yield and number of seeds per row. In general, the results showed that increasing the application of superabsorbent from control (zero) to 225 kg / ha (V4) increased the yield of corn in all levels of drought stress. Therefore, according to the results, it can be suggested that irrigation can be increased up to 12 days if using superabsorbent at levels V3 and V4.