The present invention relates to an electrode drying device and an electrode drying method, the electrode drying device comprising: an oven which provides a space where an electrode is dried and includes a hot air nozzle or an infrared heater; a color coordinate measurement unit which is disposed at the outlet of the oven to measure the color coordinate value of an electrode active material layer of the dried electrode; and a control unit which analyzes the drying result of the electrode from the color coordinate value, determines whether the drying of the electrode is defective, and controls conditions under which the electrode is dried.