Noodle is one of the most important parts in the diet of Asian people. It has also become popular in many countries outside of Asia. The development of noodles made from wheat bran and whole wheat flour with high content of dietary fiber should be an effective way to promote high fiber food consumption and change the dietary pattern of many consumers. Therefore, the objective of this seminar is to investigate the effects of particle size and addition level of wheat bran and whole wheat flour on the quality of noodle. The first study determined the effect of addition level and particle size of wheat bran on the mixing characteristics and pasting properties of noodle flour. Results showed that addition of wheat bran significantly decreased the peak viscosity, final viscosity, breakdown, and setback of flour blends. Coarse bran or high addition levels affected the breaking strength and flexibility of dry noodles. The second study reported that, compared to coarse particles, millfeeds with finer particles exerted beneficial effect on the quality improvement of whole wheat raw noodles. However L* value slightly decreased and Polyphenol oxidase activity increased for whole wheat flour as the millfeed particle sizes reduced, while hardness, springiness, cohesiveness values of cooked noodles as determined by TPA all increased with the reduction of millfeed particle sizes. The third study investigated the effects of superfine grinding on the quality characteristics of whole wheat flour and its raw noodle product. Particle size distributions of whole wheat flour of 125mm, 96mm, 72mm, and 43mm were reported. Results showed that both starch damage and water absorption of whole wheat flour were significantly affected by the reduction of particle size.