A badminton racket is generally composed of a racket head, a racket rod, a racket handle, and a joint between the racket frame and the racket rod. The length of a racket does not exceed 68 centimeters, with the length of the racket handle and racket rod not exceeding 42 centimeters, the length of the racket frame not exceeding 25 centimeters, and the width of 20 centimeters. With the development of science and technology, the racket is developing towards lighter weight, harder racket frame, better racket rod elasticity, and smaller air resistance.