The invention provides an electric energy meter state checking and optimizing method based on an actual load condition. The method is characterized in that basic error weight re-arrangement is performed according to the ratio of a basic error to all load points on the condition of different load points for performing calculation. The method comprises the steps of (1), selecting one load point by each meter in one hour, wherein load point data come from a sampling system, and determining a basic error which corresponds with the load point through the rated current of the load point; (2), calculating the ratio between the basic error which corresponds with the rated load current of each meter and the total number of load points, and performing basic error weight re-arrangement on the total number of the load points. According to the method of the invention, the load data are acquired in a power consumption information acquisition system in each day, and after the method of the invention is applied, state checking accuracy is remarkably improved.