A one-key multi-contact alphabetical keyboard connected with a computer chip and capable of being used for an intelligent watch comprises a capacitive, resistive or voltage type virtual touch keyboard; the alphabetical keyboard is characterized by at least comprising six and more alphabetical keys; each virtual alphabetical key comprises 2-4 coordinate touch regions; each coordinate touch region corresponds to a mark of a letter; when a touch screen detects that the coordinate touch region of a letter is touched, the letter is displayed in the screen; and when the touch screen detects that two or more coordinate touch regions are touched, the letter corresponding to the coordinate touch region with maximum touch area is selected and displayed in the screen. By implementing the one-key multi-contact alphabetical keyboard provided by the invention, 6, 8, 9 or 12 keys can be marked in the touch screen, with relatively small area, of the intelligent watch, and each key can correspond to 2-4 coordinate touch regions which represent different letters respectively, so that 36 and even more letters or letter input can be realized.