The invention discloses a method for extracting the movement track and trend of a thunder cluster, and the method comprises the steps: 1, performing a thunder intensive generation process in a monitoring region in a time period T, and collecting the position information D of all thunder happening in the time period T; 2, carrying out the gridding of the monitoring region A, and setting the grid lines in the longitude and latitude directions; 3, carrying out the smoothing operation of the data D, and extracting a movement coverage region of the intensive thunder clutter in the range A in the period T; 4, carrying out the regression operation of the coverage region of each thunder cluster separated through a thunder density contour line in the period T, summarizing the movement track of thethunder cluster in the period T, and predicting the future movement direction; 4-1, carrying out the linear regression of C if the span of the period T is smaller; 4-2, carrying out the secondary regression of C when the span of the period T is bigger; 5, evaluating the effects of the steps 4-1 and 4-2 through a least square error, and providing the basis for the final selection. The method can iron out the defects of the movement track generalizing and direction prediction of the thunder clusters in a conventional result.