100 inbred lines, including 50 normal oil corn (NOC) and 50 high oil corn (HOC) inbred lines were identified and evaluated on four stalk quality traits such as, neutral detergent fiber (NDF), acid detergent fiber (ADF), the water soluble carbohydrate (WSC) and crude protein (CP). The technique of near infrared diffuse reflectance spectroscopy (NIDRS) were used to determine these values? The results showed that every quality trait had highly significant variation, the coefficient of variation (CV) of WSC was the highest (34.23%) . The correlation analysis among quality traits of inbred lines showed that WSC had a significant negative correlation with NDF and ADF at P<0.01, and NDF had a significant positive correlation with ADFCP at P<0?01. WSC and CP of HOC were higher than those of NOC, ADF and NDF were lower than those of NOC. In general, the stalk quality of HOC was superior to those of NOC obviously.