Abstract: With the increasing utilization of solar energy, the on-site access of photovoltaic power to the distribution network is becoming more and more common. However, the disorder connection of a large number of photovoltaics into the distribution network may cause many problems such as voltage limit violation, photovoltaic consumption difficulty, and economic benefit inefficiency. Aiming at the three uncertainty planning problems of the optimal configuration of photovoltaic access capacity, the selection of access nodes and locations, and the evaluation of the photovoltaic consumption capacity, a simulation of photovoltaic absorption capacity of the distribution network and the selection of the consumption plans are proposed. First, based on the analysis of the distribution network line structure and defining the global voltage influences of the nodes, the influence of each node's photovoltaic access on the global voltage is measured accordingly; Then, based on the Monte Carlo method, a method for stochastic simulation of photovoltaic absorption schemes and an approximate assessment of the absorption capacity are proposed. In order to improve the efficiency and precision of the simulation evaluation, the sampling method of photovoltaic access node position based on the influence degree of the node global voltage is designed. Finally, the approximate maximum absorption capacity of each candidate optimal absorption plan and the upper limit of the annual operating voltage indicators and the annual average investment benefits are considered comprehensively. Using the Technique for Order Preference by Similarity to an Ideal Solution (TOPSIS), the most economical and safe solution is selected. The simulation in the IEEE33 node system verifies the effectiveness of the method.