在“双碳”政策推动下，配电网面临海量分布式可再生能源接入带来的挑战。高效潮流计算分析成为应对这些挑战的关键，但现有前推回代潮流计算方法在处理大规模节点配电网时需要花费大量的时间获得计算顺序和电抗矩阵，影响了潮流计算的效率。为此，本文提出一种融合叶节点递归剪枝的前推回代潮流计算方法。该方法利用配电网的拓扑特性，通过对叶节点实施递归剪枝，快速确定大规模节点配电网的计算顺序，并能够同时获得对应的电抗矩阵，从而有效地提升潮流计算的效率。仿真结果表明，融合叶节点递归剪枝的前推回代潮流计算方法，相较于现有的分层类和搜索排序类的前推回代法求解效率表现更佳，尤其是在大规模配电网中，其提升效果更为显著。

Under the promotion of the "Dual Carbon" policy, the distribution network is facing challenges brought about by the massive integration of distributed renewable energy sources. Efficient power flow analysis has become a critical approach to address these challenges. However, existing back/forward power flow calculation methods require significant time to obtain the calculation order and reactance matrix when dealing with large-scale distribution networks, thus affecting the efficiency of power flow calculations. To address this issue, this paper proposes a method that back/forward sweep power flow calculation method integrated leaf nodes recursive pruning. This method utilizes the topological characteristics of the distribution network to implement recursive pruning on leaf nodes, quickly determining the calculation order for large-scale distribution networks with numerous nodes. It can also obtain the corresponding reactance matrix simultaneously, thereby effectively enhancing the efficiency of power flow calculations. Simulation results indicate that the back/forward sweep power flow calculation method integrated leaf nodes recursive pruning performs better in terms of solution efficiency compared to existing layered and search-sorted forward-backward power flow methods, especially in large-scale distribution networks, where the improvement is more pronounced.