The invention discloses a winter air conditioner load calculation method and a readable storage medium, and relates to the technical field of power grid load management, and the method comprises the following steps: obtaining an initial reference date set based on autumn and spring of the next year, and screening the initial reference date set to obtain a split reference date set; calculating a winter basic load curve based on the splitting reference date set; and determining a winter air conditioner load curve according to the winter unified load curve and the winter basic load curve. According to the method, the influence of abnormal weather can be eliminated in the air conditioner load reference day selection process, the air conditioner load obtained through calculation according to the method has higher precision compared with a traditional method, and the power grid management side can grasp the winter air conditioner load characteristics more accurately.