[目的]探索赤霉素(GA_3)对甘蔗实生苗产量性状的影响。[方法]采用不同浓度GA_3处理8个甘蔗实生苗组合,观察并测定处理后甘蔗丛有效茎数、株高、茎径、锤度等指标。[结果]对甘蔗实生苗叶片喷施不同浓度GA_3后,丛有效茎数、株高和茎径差异显著,锤度没有明显变化。GA_3处理能显著提高甘蔗实生苗产量,但对提高糖分无显著作用。[结论]该研究可为甘蔗育种应用提供参考依据。 [Objective] The research aimed to explore the effect of gibberellin (GA_3) on the yield traits of sugarcane seedlings. [Method] The seedlings of 8 sugarcane combinations were treated with different concentrations of GA_3, the effective stem number, plant height, stem diameter and brix of the treated sugarcane cane were observed and measured. [Result] After spraying different concentrations of GA_3 on the leaves of sugarcane seedlings, the effective stem number, plant height and stem diameter of the clumps were significantly different, but the brix did not change significantly. GA_3 treatment could significantly increase the seedling yield of sugarcane, but had no significant effect on increasing sugar content. [Conclusion] This research could provide a reference for sugarcane breeding application.