An ultrasonic-based real-time wireless surgical navigation device comprises a wireless ultrasonic array probe (101), a computer system (102), and more than one pair of seen-through displaying glasses (103). The wireless ultrasonic array probe (101) comprises an ultrasonic transducer array, a UWB signal transmission unit, and a power source. The ultrasonic transducer array is used for detecting and positioning the lesions, muscle body and surgical instruments. The UWB signal transmission unit transmits a signal received by the ultrasonic transducer array to the computer system (102) in a wireless manner. The power source is used to supply power for the ultrasonic transducer array and the UWB signal transmission unit. The computer system (102) comprises a host, a display, and a UWB signal transceiver unit. The UWB signal transceiver unit is used to receive information sent by the ultrasonic transducer array, and then the host processes the information to obtain image information. The UWB signal transceiver unit further sends the image information to the seen-through displaying glasses (103) for display. The present invention is of a simple structure, is easy to operate, is highly safe, and has the low cost.La présente invention concerne un dispositif de navigation chirurgicale sans fil en temps réel à base dultrasons comprenant une sonde matricielle ultrasonore sans fil (101), un système informatique (102), et plusieurs paires lunettes transparentes daffichage (103). La sonde matricielle ultrasonore sans fil (101) comprend une matrice de transducteurs ultrasonores, une unité de transmission de signal UWB, et une source dalimentation. La matrice de transducteurs ultrasonores est utilisée pour détecter et repérer les lésions, les corps musculaires et les instruments chirurgicaux. Lunité de transmission de signal UWB transmet sans fil au système informatique (102) un signal reçu par la matrice de transducteurs ultrasonores. La source dalimentation est utilisée pour alime
