Abstract: This paper introduces the improvement measures and progress of several piezoelectric linear motors, including peristaltic, pulse, traveling-wave, and surface-acoustic-wave types. Among them, the micro-edge-inchworm and surface-acoustic-wave linear motors are highly likely to become new product directions for the commercial market of piezoelectric linear motors in the future. Keywords: piezoelectric linear motor; ultrasonic motor; pulse piezoelectric motor; peristalsis; surface wave; traveling wave [b][align=center]New Technology for Improving Thrust Power Piezoelectric Linear Electric Motors Li Wenzhuo, Zhao Wansheng, Meng QingGuo, et al (Harbin Institute of Technology, Harbin 150001)[/align][/b] Abstract : With the improvements of peristaltic, pulse, traveling-wave, and surface-acoustic-wave linear motors introduced, it is concluded that the micro-edge-inchworm and surface-acoustic-wave motors will promise well in the future research and commercial use. Keywords : piezoelectric linear motor; ultrasonic motor; micro-push motor; inchworm; SAW; travel-ling wave Introduction With the rapid development of science and technology, especially in fields such as optics, microelectronics, aviation, aerospace, mechanical manufacturing, robotics, modern medicine, biology, and genetic engineering, there is an increasing need for high-performance linear motor drive technology. Piezoelectric linear motors, with their small size, low cost, high output force (relative to their size), fast response, high precision, and lack of electromagnetic interference, have become a hot topic of interest for many research institutions and enterprises, and have broad application prospects. However, currently, the drive of piezoelectric linear motors mainly relies on frictional force transmission. Therefore, low axial stiffness and low output thrust are common drawbacks of all piezoelectric linear motors and even all piezoelectric motors to date, which greatly restricts their practical application. How to effectively improve the axial thrust to meet its driving needs and expand its application range is a current hot research topic for piezoelectric linear motors. This paper will introduce the structural improvements and research progress of several typical piezoelectric linear motors in improving their axial thrust. [b][align=center]For details, please click: New Technology to Improve the Thrust of Piezoelectric Linear Motors[/align][/b]