A head-mounted ultrasound stimulation device (100) and system, the device (100) comprising a shell (10) for covering the head of a user, and a coupling sheath (20) provided inside the shell (10), wherein space (70) between the coupling cover (20) and the shell (10) is filled with coupling liquid, and the coupling sheath (20) contacts the head of the user when it is worn； the shell (10) is mounted with a two-dimensional area-array transducer (30), a data transceiving unit (40), a integrated circuit (50) and a power supply (60), wherein, the data transceiving unit (40) is used for receiving stimulation data from a control device (200), the stimulation data including data for controlling intensity and a focal position of a sound field generated by the two-dimensional area-array transducer (30)； the integrated circuit (50) is used for converting the stimulation data into stimulation signals； the two-dimensional area-array transducer (30) is used for generating a focused ultrasonic field under stimulation by the stimulation signals to stimulate intracranial nerve cells； and the power supply (60) is used for supplying power to the data transceiving unit (40) and the integrated circuit (50). The device (100) can generate a focused sound field having a plurality of focal points, wherein, positions of the focal points and intensity of the sound field are adjustable, so as to make accurate multi-focal ultrasonic stimulation on the brain cell nucleus, thereby playing a curing effect. This device is easily operable.La présente invention concerne un dispositif (100) et un système de casque de stimulation ultrasonore, le dispositif (100) comprenant une coque (10) pour recouvrir la tête d'un utilisateur, et une gaine de couplage (20) disposée à l'intérieur de la coque (10), l'espace (70) entre la couverture de couplage (20) et la coque (10) est rempli d'un liquide de couplage, et la gaine de couplage (20) entre en contact avec la tête de l'utilisateur lorsqu'il est porté ； la coqu
