A neck massager comprises two massage assemblies (100) and a connection assembly (200) connected between the two massage assemblies (100), and further comprises an upper shell (300) and a lower shell (400), a U-shaped shell being integrally formed by fastening the upper shell and the lower shell. The two massage assemblies (100) and the connection assembly (200) are all provided inside the U-shaped shell. Each massage assembly (100) comprises a power component (110) and a massage head (120) driven by the power component (110). The connection assembly (200) comprises two racks (210) connected to the power components (110) respectively and an adjusting device for relatively contracting or expanding the two racks (210). The adjusting mode where the adjusting device is utilized to drive the two racks (210) to contract or expand is more accurate and controllable. The neck massager can not damage performance of connection components (200) after long-term use and has long service life. Because the U-shaped shell is of an integral structure and completely wraps the two massage assemblies (100) therein, when the two massage assemblies (100) relatively move, neither a gap nor a crack exists, and hairs of a user are not clamped accordingly.Linvention concerne un appareil de massage de cou, qui comprend deux ensembles de massage (100) et un ensemble de raccordement (200) relié entre les deux ensembles de massage (100), et qui comprend en outre une coque supérieure (300) et une coque inférieure (400), une coque en forme de U formée dune seule pièce en fixant la coque supérieure et la coque inférieure. Les deux ensembles de massage (100) et lensemble de raccordement (200) sont tous fournis à lintérieur de la coque en forme de U. Chaque ensemble de massage (100) comprend un composant électrique (110) et une tête de massage (120) entraînée par le composant électrique (110). Lensemble de raccordement (200) comprend deux supports (210) respectivement reliés aux composants électriques
