The present invention relates to an impeller mixer for electrode slurry and, particularly, to an impeller mixer for electrode slurry comprises: a container (100) filled with raw materials of electrode slurry; an impeller (110) which has multiple layers having different shapes so as to be rotationally provided inside the container (100), and which mixes the raw materials of the electrode slurry; and a driving unit (120) which is provided on the lower part of the container (100) and is connected to the impeller (110) through a coupling shaft formed upwardly so as to rotate the impeller (110). Thus, the raw materials of the electrode slurry can be efficiently dispersed in a short time by the multi-layered impeller (110) which rotates at a high speed, and at the same time, uniform mixing is enabled so as to improve work efficiency.