A keyboard threshold change apparatus and a keyboard in which thresholds of the ON-sensing positions of the keys can be individually changed and the thresholds can be checked with illumination colors. The apparatus includes a keyboard having a light illuminating key tops of a plurality of keys and a threshold change unit capable of changing, for each key, a threshold used to determine an occurrence of a press of the key; and a computer connected to the keyboard including a mouse to input the threshold and a display unit outputting the threshold input with the mouse as an image, when the threshold for a key is changed with the mouse, the threshold change unit changes, based on the changed threshold for the key from the computer, a threshold for the key in the keyboard, and the light changes an illumination color of the key for which the threshold is changed.