Abstract: To improve the loom′s speed and the quality of textiles,an embedded system for warp tension which can fulfill the required control function at a comparatively low cost is designed,taking advantages of S3C44B0X′s rich hardware resources and embedded operating system μClinux's high real time and multiple tasks.The description of the system includes the design and implementation of hardware architecture,the design and implementation of application program and the keep method of wrap tension control.It can keep wrap tension constant and response fast with high precision.It is easy to eliminate start marks and other problems.The results indicate that the control system can settle some difficult control problems and has advanced functions.