By taking the 85 black soil samples in north of Jilin province as the examples of analyzing organic matter

a optimum choosing method of combination wavelengths for calibration was presented by the ways of Multiplicative Scatter Correction (MSC) and correlation spectrum

and the model was optimized progressively based on experience and reference wavelength theory. Finally

the model shows the correlation coefficient of 0.90

Root Mean Square Error of Calibration(RMSEC) of 0.36%

and Root Mean Square Error of Calibration Value(RMSECV) of 0.40%

which approaches to the calibration of continuous spectrum by Partial Least Square(PLS). Rusults indicate that the model is simple and stable

and can offer a reference for general black soil condition investigation in north of Jilin province.