An imaging and measuring system of vocal cord vibration based on plane wave ultrasonography, includes: a digital ultrasonography system, a data acquisition unit, and a computer wherein the digital ultrasonography system comprises an ultrasound linear array transducer and a host wherein the ultrasound linear array transducer is controlled by the host for sending an ultrasound plane wave and receiving echo the echo is sent back to data acquisition unit wherein the data acquisition unit converts the echo into digital signal and then sends it to the computer wherein the computer provides beamforming, envelope detection, and dynamic range compression of the digital signal received, for obtaining a laryngeal tissue structure image. The present invention provides high-speed imaging of the vocal cord vibration with temproal and spatial synchronization, and quantitatively extracting information of biomechanical parameters as well as vibrational phase changes.
