Cutting rooting method for hard branches of robinia pseudoacacia

The invention discloses a cutting rooting method for hard branches of robinia pseudoacacia. The method comprises the following steps: selecting one-year shoots of the robinia pseudoacacia as cuttings, and trimming the shoots, so as to enable the shoots to have the mean length being 10-12cm; quickly dipping the trimmed shoots with ethyl alcohol, and soaking with an ABT1 rooting powder solution for 48 hours, and then cutting into a sand substrate of a seedbed; and carrying out cutting, watering thoroughly, and implementing seedling management. The method is low in technical requirements, but the problem of low cutting survival rate of the robinia pseudoacacia caused by secondary metabolites such as tannin is effectively solved; the cutting rooting rate of the robinia pseudoacacia can be up to 95-100%; a technical support is provided for vegetative propagation and seedling of robinia pseudoacacia; and the method has the great application and popularization values.