Objectives To investigate and discuss the clinical application value of the whole-course ultrasound dynamic visualization monitoring in the treatment of closed nasal bone fracture, and to study the practicality and effect of manual reduction under the whole-course ultrasound dynamic monitoring in the treatment of closed nasal bone fracture. Methods Eighty-four patients with closed nasal bone fracture who were admitted to the First Affiliated Hospital of Bengbu Medical University and followed up in this study were randomly divided into the ultrasound group and the traditional group according to the basic principle of randomization. The ultrasound group was treated with closed reduction of nasal bone fracture by manual reduction under the whole-course ultrasound dynamic visualization monitoring, while the traditional group was treated with closed reduction of nasal bone fracture by traditional manual reduction. We evaluated the effects of the two methods by comparing total hospital stay, preoperative preparation time, intraoperative reduction time, postoperative CT imaging scores, nasal shape recovery, and homemade VAS nasal ventilation scores. Results The 42 patients in the ultrasound group under satisfactory general anaesthesia were treated rapidly with precise manual reduction. The intraoperative repositioning forceps were placed in the correct position, the nasal packing was properly filled, the intraoperative repositioning operation time was short, the total hospital stay was short, and the postoperative CT imaging scores, recovery of nasal structure and shape, and nasal ventilation function were better than those of the traditional group. Conclusion Ultrasound dynamic visualization monitoring throughout the entire process is applied to fresh nasal fracture closed reset. Although the intraoperative operation time is longer than that of traditional reduction, the ultrasound probe can be used to observe in real time whether the reduction forceps are accurately positioned, whether the fracture block is accurately reduced during the prying process of the reduction forceps, whether the filler is accurately filled, and the normal position of the fracture block under the action of tamponade. The application of this technology has transformed the closed reduction of nasal bone fracture from the original traditional blindness to transform to fast and accurate operations under ultrasound visualization, which not only helps to shorten the patient"s diagnosis and treatment, but also improve the accuracy of reset, postoperative CT Rating, so as to get higher patient satisfaction. This also makes it possible for clinical in -depth summary of nasal fracture type and formulating individualized diagnosis and treatment plans for different types of fractures.