Abstract: A guitar includes fibers of lengths between 0.2 millimeters to 3 millimeters. The guitar further includes a guitar body, a headstock board, a soundboard, a fretboard, and a guitar bridge. Each of the guitar body, the headstock board, the soundboard, the fretboard, and the guitar bridge is a continuous and single structure. The disclosure also relates to a guitar and a method for manufacturing a guitar. The guitar is superior to the traditional acoustic guitars in terms of volume and mechanical performance, so that a service life of the guitar of the application can be increased by 2 to 3 times compared with traditional acoustic guitars and durable.