A method for automatically hiding keypad, an electronic device, and a digital data storage medium are provided. The keypad automatically hiding method is applied to an electronic device having a touch screen. The method includes the following steps. Firstly, an input field and a keypad are shown on the touch screen. Next, an item of data is received from the keypad and inputted to the input field. Then, a search list is shown on the touch screen according to the data. Afterwards, the keypad is hidden when the input signal for checking the search list is generated.