High-speed EMUs were strict with the performance and reliability, such as efficiency and power density, while traditional asynchronous traction motors had little room for improvement of performances to meet the requirements of new generation high speed railway traction system, so the permanent magnetic traction motors (PMTM) of the high-speed EMUs was developed to improve the performance and reliability of the traction motors. According to the technical characteristics and key technical parameters, a PMTM was designed and manufactured via the design of magnetic path structure, the analysis on prevention of irreversible demagnetization, the lightweight design and the optimization of thermal managements. The experimental results satisfied the technical requirements. A complete set of methods to the PMTM for high-speed EMUs was obtained, which was the theoretical and practical foundation of the further research on the PMTM of the high-speed EMUs