Abstract: Currently, synthetic aperture focusing (SAFT) is the main method of ultrasonic imaging. The imaging quality of SAFT depends greatly on the accuracy of ultrasonic velocity estimation and the effect of noise suppression. Since the propagation of ultrasonic wave in concrete medium is similar to that of seismic wave in underground medium, we established a set of data processing procedure applied to the commercial ultrasonic shear wave detector based on the seismic data processing technology. According to the reciprocity principle,we transformed the single-ended spread record of ultrasonic detector into the artificial split spread record, and carried out multiple stacking technique and Kirchhoff migration technique to image the ultrasonic data. Concrete bed model tests show that the proposed imaging technique is suitable for data imaging of commercial ultrasonic shear detector,and can significantly improve the imaging resolution and identify concrete layered interfaces and internal reinforced structures more precisely than the ultrasonic detector's built-in synthetic aperture focusing imaging results.