分析了影响大豆杂交成功率高低的因素。结果表明：杂交亲合性、杂交时间、杂交花节位及大气湿度等因素对杂交成功率影响较大，而亲本间生育期差异及花期差异与杂交成功率相关不显著。因此，可通过调节杂交时间，选择适宜的杂交花节位，改善田间小气候等途径来提高大豆杂交成功率。 The factors affecting the success rate of soybean cross were analyzed. The results showed that the factors such as hybridization compatibility, hybridization time, the position of hybrid flower node and atmospheric humidity had a great influence on the success rate of hybridization. However, there was no significant correlation between the difference of growth period and the difference of flowering period and the success rate of hybridization. Therefore, the success rate of soybean crossing can be improved by adjusting the crossing time, selecting the appropriate hybrid flower node and improving the microclimate in the field.