Plastic ukulele

A plastic ukulele, comprising a panel (2), a fingerboard (3), a headstock cover plate (4) and a body bottom housing (1). The panel (2), the fingerboard (3) and the headstock cover plate (4) are buckled on the body bottom housing (1) to form a complete body; a circle of outline reinforcing ribs (22) is arranged at the position of a back face of the panel (2) close to the edge along an outer outline thereof; a sound hole (23) is provided in an upper middle portion of the panel (2); left and right longitudinal reinforcing ribs (241, 242) and upper and lower transverse reinforcing ribs (251, 252) are arranged on the back face of the panel (2) around the sound hole (23); the portion of the panel (2) defined by the lower portion of the lower transverse reinforcing rib (252) and the outline reinforcing rib (22) is a vibration sound production portion (26); the thickness of the vibration sound production portion (26) is 1.0-1.4 mm; an inner side of the vibration sound production portion (26) is provided with net-shaped sound beams (5) which are crossed in a parallel diagonal manner; and the net-shaped sound beams (5) and the panel (2) are integrally formed in an injection molding manner. The plastic ukulele has a high-strength structure; in addition, an ultra-thin panel vibration sound production portion (26) which cannot be achieved in a traditional wooden ukulele is achieved, the volume is larger, and the timbre is comparable to or even exceeds that of a traditional wooden ukulele. Furthermore, the manufacturing process is simple and efficient, low in cost and suitable for large-scale batch production and all-weather use.