A slider for keyboard is disclosed, which comprises a keyboard, a slider, and a supporting frame. The slider is slidably disposed on the lateral side of the keyboard. The supporting frame is pivotally connected to the slider. The keyboard includes a top shell and a bottom shell, the top shell formed with a first sliding rail and the bottom shell formed with a second sliding rail. The slider is slightly bent defining a first block and a second block, a first track is formed on the first block, and a second track is formed on the second block. The first sliding rail is slidably received by the first track, and the second sliding rail is slidably received by the second track.