In order to meet the requirements of high-power density and efficiency in permanent magnet synchronous motor (PMSM) drive systems, a high-efficiency PMSM drive technology based on all-SiC MOSFETs is proposed, leveraging the advantages of SiC power devices such as low on-state resistance and high switching speed. Based on different parameters of SiC MOSFET devices, precise selection and loss comparison were conducted. Addressing the issue of high dv/dt due to the high switching speed of SiC MOSFETs, a highly reliable SiC MOSFET driver circuit was designed, and its design rationality was verified through DPT. Additionally, this paper has designed a minimal control system based on the Infineon XMC1404 series MCU tailored to the requirements of the PMSM drive system. Finally, the excellence and reliability of this design were validated through experiments using a 23 kW PMSM drive system as the application target.