We built two starch factories for Gnasu Xingda Group, at 2002 and 2003 respectively. We offered all equipments for cleaning process and drying process and automatic control system for Lintao Factory. We also offered whole line service for Zhangxian Starch Factory, including technical design, whole line equipments, installation and adjustment, etc. This plant realizes design requirements, successfully passes adjustment and meets customer’s requirements. This project utilizes automatic control system, reduces operation intensity and improves quality stabilization. Whole process technology is internationally advanced, water-saving, higher in product yield, which gains economic and social value.