Drought is the main agro-meteorological disaster in growth and development stage of spring maize in Jilin Province. It is urgent to take measures to irrigate reasonably and reduce the adverse effects of drought for spring maize production in Jilin Province. In this study, the WOFOST model was revised using data such as meteorological and soil data. The effects of different rewatering schemes on maize growth and yield under different drought conditions were simulated by using the modified WOFOST model. The results showed that the modified WOFOST model had good simulation effect on leaf area, dry matter weight, and yield of spring maize under drought condition. The simulated results of drought and rewatering showed that during the stage of jointing-tasseling and tasseling-milky maturity, the loss of dry matter weight and yield of maize for Yushu and Baicheng increased with the increase of drought degree. Under the same rewatering scheme, the dry matter weight and yield loss of the spring maize in Yushu were smaller than that in Baicheng. The drought in the stage of tasseling-milky maturity had a greater effect on the yield of spring maize. From aspect of the rewatering scheme, the continuous rewatering scheme as a whole was better than the one-time rewatering scheme, and the timely and sufficient rewatering in the process of drought played an important role in resisting drought and reducing yield loss of spring maize. This study implied that WOFOST model has good application prospect in agricultural drought and irrigation simulation.