The Near infrared spectroscopy(NIR) was compared with chemical method in measuring six quality parameters of 12 different rapeseed in this study.The results showed that the test values of quality parameters were no significant differences between the two different analyzing methods using the same samples(P>0.05).The relative errors of contents of erucic acid,glucosinolate,fat,protein,oleic acid and moisture were 7.60%、2.15%、1.00%、4.17%、1.14% and 3.16.% respectively;the correlation coefficients(r) were 1.000...