A method for automatically recognizing a gesture, comprising: calibrating a touch screen of a mobile terminal, acquiring and storing a time variation threshold and a distance variation threshold when two fingers move on the touch screen, comprising: obtaining a motion speed according to a distance variation between the two fingers and a time for the variation; finding out a speed which is most approximate to the obtained motion speed from pre-stored speed empirical values; obtaining the distance variation threshold according to the most approximate speed and the time variation threshold selected from pre-stored time empirical values, and storing the time variation threshold and the distance variation threshold obtained; acquiring touch control information of each finger on the touch screen of the mobile terminal, and pre-processing data of the touch control information acquired; and extracting the time variation threshold and the distance variation threshold, and recognizing a gesture according to the pre-processed data, the touch control information and the extracted time variation threshold and distance variation threshold, wherein the recognizing a gesture according to the pre-processed data, the touch control information and the extracted time variation threshold and distance variation threshold comprises: obtaining, by a gesture algorithm processing layer of the mobile terminal, a motion state of the finger on the touch screen according to the pre-processed data; when determining that the motion state is one or more fingers are moving on the touch screen, determining the number of fingers on the touch screen according to the number of separators used for separating touch control information of different fingers in the touch control information; and when determining that two fingers are moving on the touch screen, recording current coordinates of the two fingers and a current time in real time, and calculating a distance between the two fingers; and when an absolute value of a difference between a current distance between the two fingers and a previous distance between the two fingers is greater than the distance variation threshold and a difference between two times is greater than the time variation threshold, determining that the gesture is a valid gesture. calibrating a touch screen of a mobile terminal, acquiring and storing a time variation threshold and a distance variation threshold when two fingers move on the touch screen, comprising: obtaining a motion speed according to a distance variation between the two fingers and a time for the variation; finding out a speed which is most approximate to the obtained motion speed from pre-stored speed empirical values; obtaining the distance variation threshold according to the most approximate speed and the time variation threshold selected from pre-stored time empirical values, and storing the time variation threshold and the distance variation threshold obtained; acquiring touch control information of each finger on the touch screen of the mobile terminal, and pre-processing data of the touch control information acquired; and extracting the time variation threshold and the distance variation threshold, and recognizing a gesture according to the pre-processed data, the touch control information and the extracted time variation threshold and distance variation threshold, obtaining a motion speed according to a distance variation between the two fingers and a time for the variation; finding out a speed which is most approximate to the obtained motion speed from pre-stored speed empirical values; obtaining the distance variation threshold according to the most approximate speed and the time variation threshold selected from pre-stored time empirical values, and storing the time variation threshold and the distance variation threshold obtained; acquiring touch control information of each finger on the touch screen of the mobile terminal, and pre-processing data of the touch control information acquired; and extracting the time variation threshold and the distance variation threshold, and recognizing a gesture according to the pre-processed data, the touch control information and the extracted time variation threshold and distance variation threshold, wherein the recognizing a gesture according to the pre-processed data, the touch control information and the extracted time variation threshold and distance variation threshold comprises: obtaining, by a gesture algorithm processing layer of the mobile terminal, a motion state of the finger on the touch screen according to the pre-processed data; when determining that the motion state is one or more fingers are moving on the touch screen, determining the number of fingers on the touch screen according to the number of separators used for separating touch control information of different fingers in the touch control information; and when determining that two fingers are moving on the touch screen, recording current coordinates of the two fingers and a current time in real time, and calculating a distance between the two fingers; and when an absolute value of a difference between a current distance between the two fingers and a previous distance between the two fingers is greater than the distance variation threshold and a difference between two times is greater than the time variation threshold, determining that the gesture is a valid gesture.