The invention discloses a badminton racket facilitating installation and replacement of strings. The badminton racket comprises an oval racket frame, a racket rod and a racket handle, wherein the bottom end of the oval racket frame is fixedly connected with the upper end of the racket rod, and the lower end of the racket rod is fixedly connected with the upper end of the racket handle. The badminton racket is mainly characterized in that a plurality of locking devices are arranged on the circumference of the outer side of the oval racket frame; each locking device comprises a round concave hole and a first threaded hole communicated with the round concave hole, inside hexagonal bolts are arranged in the round concave holes and the first threaded holes, and the oval racket frame and a matched inner frame with the strings are locked together through the inside hexagonal bolts; an inner annular groove is formed in the circumference of the inner side of the oval racket frame, a matched silica gel ring is arranged in the inner annular groove, and a round through hole is formed in the circumference of the silica gel ring. The badminton racket is used in cooperation with the matched inner frame with the strings and can meet different demands of consumers for string varieties, and installation and replacement of the strings can be quickly completed.