Variation during IR and heated-air drying process and effect on milling quality with moisture difference of paddy rice were investigated. The results indicate that the moisture SD (Standard Deviation) decreases during IR (Infrared Radiation) and heated-air (HA) drying process, and moisture uniform level for the paddy rice dried by IR treatment is higher than that by heated-air treatment. No matter IR or HA, the higher initial SD of MCs is, the bigger of the variable of the SDR value will be at the beginning stage of dried paddy storage.