The present invention provides an adjustable keyboard. The adjustable keyboard comprises a base casing, a support plate is formed at the lower portion of the base casing, the support plate is providedwith a circuit film, and one key hole with one built-in key is arranged above each switching node; each key comprises one key
magnet, and the bottom portion of each key is provided with one
conductive rubber; one adjusting nut is arranged at each of four corners of the base casing, the adjusting nuts can perform twist to adjust the lengths of screws stretching into the bottom portion of the basecasing, and the lower end of one nut of each adjusting nut is supported at a desktop; an adjusting plate is arranged below the base casing, sleeves the adjusting nuts through by employing holes arranged at the four corners, and horizontally laid at the upper ends of the nuts of adjusting nuts; and adjusting plate magnets having the same polarity being opposed to each other as one key
magnet in each key are arranged on the adjusting plate facing each key. The adjustable keyboard can flexibly adjust the
hardness when the keys are pressed down in the usage process so as to meet demands of different users in different scenes.