To explore the effects of aerobic composting and reduced fertilizer application using pig manure and corn stover as raw materials on the yield and quality of spring corn. Using pig manure and corn stover as raw materials for aerobic composting, using pig manure stover compost instead of chemical fertilizer input, exploring the effect of reduced application of compost and chemical fertilizer on the yield and quality of spring corn. A split plot experimental design was adopted in the field, with two compost application rates set at 12,500 kg/ha and 25,000 kg/ha, and four fertilizer reduction ratios set at 0%, 10%, 20%, and 30%, respectively. During the ripening period of corn, investigate the yield and yield components of corn, and collect samples to determine the starch, protein, and fat content of corn grains. The results showed that under different compost dosage conditions, the combination of compost and chemical fertilizer can significantly improve the yield and grain quality of corn. Within a certain range, as the proportion of fertilizer reduction increases, the yield and quality of corn also increase. Among them, when the amount of compost is 12,500 kg/ha and the amount of fertilizer is reduced by 20%, the corn yield and various quality indicators are the highest. The number of corn ears, thousand grain weight, yield, starch, protein, and fat are increased by 3.86%, 11.16%, 14.62%, 18.02%, 16.04%, and 12.91%, respectively compared to the conventional fertilization treatment of farmers. Under the conditions of this experiment, the combination of pig manure straw compost and reduced fertilizer application significantly improved the yield and quality of spring corn. Moreover, when the compost amount was 12,500 kg/ha and the traditional fertilizer input was reduced by 20%, the yield and quality of corn were improved the best.