Abstract: A wearable electromyography device includes a garment, a plurality of fabric electrodes, and an insulating film. The garment has a plurality of anchor structures disposed on a first surface of the garment and a plurality of holes penetrating the garment. The fabric electrodes are disposed on the first surface of the garment. The insulating film is disposed on the first surface of the garment and seals peripherals of the fabric electrodes. A segment of the garment without being covered by the insulating film has a first elastic extension rate, a segment of the garment being covered by the insulating film has a second elastic extension rate, and the first elastic extension rate is greater than the second elastic extension rate.