The present invention relates to a method for preparing an electrode slurry, and particularly, to a method for preparing an electrode slurry that includes the processes of preparing a mixed solution by mixing a binder, a conductive material, and an active material with a solvent (process 1); separating the mixed solution prepared through process 1 into layers (process 2); and removing at least a portion of the solvent from the mixed solution of process 2, which has been separated into layers (process 3).