In this paper, the issue of how to improve the resolution of ultrasound imaging is studied, and micro-scanning super-resolution imaging methods Based on the precision machinery scanner is proposed. This method breaks through the conventional acquisition ways of micro-displacement sequence image, and easy to implement. At first, application feasibility analysis is made in the paper, then the simulation of the image sequence acquisition is made based on micro-scanning mode. The results showed: the method of super-resolution ultrasound imaging based on micro-scan is operational and original, and it is excellent reference material to improve the resolution of Ultrasonic imaging equipment.