The invention provides a method for analyzing the new energy receiving capacity of a power system and relates to the technical field of the power grids. The method can provide a theoretical basis forevaluating the new energy receiving capability of the power system, and ensures the high-efficient use of the power of new energy by the power system. The method comprises the following steps of: arranging all apparatus participating in overhaul to be overhauled within T time periods of a research cycle by using an equal spare capacity method; creating a power system new energy optimal receiving capacity model, and solving an objective function aiming at minimum power system operation cost and minimum new energy amount. If there is an optimal solution, the power system can receive all new energy in the time period t, and the maximum new energy receiving amount and corresponding operating cost during the time period t are obtained. If there is no optimal solution, the power system cannot receive all new energy in the time period t, new energy receivable amount and corresponding operating cost of during the time period t are obtained, and a reason why all new energy cannot be received isobtained.