The present invention provides: an electrode mixture manufacturing method comprising the processes of introducing a first binder, an electrode active material, and a conductive material into an extruder, performing a first mixing of the first binder, the electrode active material, and the conductive material in the extruder, additionally introducing a second binder into the extruder and performing a second mixing, and yielding an electrode mixture resulting from the first mixing and the second mixing; an electrode mixture manufactured thereby; and an electrode manufacturing method using the electrode mixture.