1. A method of searching note items, wherein the method includes the following steps: when marking a note item, detecting a gesture input from a touchscreen or choosing a gesture which has been input, and saving the gesture and the corresponding relation between the gesture and the note item into a memory; when a note item needs to be searched, detecting a gesture input from the touchscreen, and according to the input gesture, searching a matching gesture from the gestures saved in said memory, if the matching gesture is found, then displaying each note item corresponding to the matching gesture according to said corresponding relation.