Abstract: As a new VLIW based microprocessor M3270 was manufactured successfully, an operating system was urgently needed to support it. To research the architecture of Linux kernel and analyze the amount of efforts required to port Linux kernel to a new hardware, it will improve OS designing technique and reduce the cost greatly. Based on the research of Linux kernel architecture and M3270 hardware architecture, a methodology of porting Linux kernel to M3270 platform was proposed, which was proved to be practical and successful by the present study.