Flour pneumatic conveying system with multipoint feeding was designed for the specific requirement that material need to store for a period of time before mixing process. To ensure the continuous feeding, several flour tanks were applied for the storage and feeding. The parameters, include pipe diameter, velocity, mixture ratio of air to material, air volume and power of the fan need when the system ran, were determined. The system operation was monitored by Kingview, which improved the automatic operation in the process greatly.