Based on the analysis of the transmission character and detecting principle of the ultrasonic wave, a ultrasonic test method of biomechanical equivalent artificial soft materials was put forward, and a measurement and analysis system of ultrasonic test for the mechanical properties of the artfical soft materials was designed. The wave speed, elastic modulus, attenuation of three types of biomechanical equivalent artificial soft materials with different density were tested and calculated. Based on the platform of Labwindows/CVI and MATLAB, the ultrasonic echo signalwas decomposed and analyzed in details with many methods. At last, the relationship between the mechanical properties of equivalent artificial soft materials and the ultrasonic echo signal was analyzed. The results indicated that the proposed method is correct and validated.
