The utility model relates to a neck pillow for medical ultrasonic examination, in particular to the ultrasonic neck pillow which is used in the neck examination with medical ultrasound. The neck pillow is a capsule with a mouth for filling or discharging liquid, and also has a stopper which can match with the mouth to build up the mouth, the lower bottom is plane and the middle part of upper surface is a concave. The capsule of the utility model can be filled the liquid or gas, but filling gas will be the best so as to you can adjust expediently the height of neck pillow by means of filling or discharging gas in everyday use. When carrying through the examination, putting the utility model behind the patients neck and adjusting the height of the neck pillow to relax the muscle ligament of patients, this operation will not lead to an indisposed feeling or bring about pains for patients, meanwhile, this operation can help all patients to finish their ultrasonic examination.