The invention provides a threading method realizing tight middle part and loose surrounding parts for a badminton racket. The threading method is characterized in that the vertical intersection pointsbetween the two topmost horizontal lines/the two bottommost horizontal lines and vertical lines of a racket frame are formed not in a manner of vertical intersection with passing through of one vertical line, but in a manner of vertical intersection with passing through of two vertical lines; the other horizontal lines realize vertical intersection after passing through one vertical line; the poundage of the lines threaded by the two leftmost vertical lines and the two rightmost vertical lines of the racket frame is lower than the poundage of the lines threaded by the middle vertical lines byone pound; the poundage of the lines threaded by the two topmost horizontal lines and the two bottommost horizontal lines of the racket frame is lower than the poundage of the lines threaded by the middle horizontal lines by one pound; the poundage of the lines threaded by the middle horizontal lines of the racket frame is higher than the poundage of the lines threaded by the middle vertical lines by two pounds. The threading method has the beneficial effects that the threading process is simple, and the ball hitting speed of the racket is improved.