Objective To investigate the application values of DTI in spinal cord concussion injury(SCC). Methods Routine MR scan and DTI were accomplished in 17 cases of SCC, study group A, and 32 cases of spinal cord injury without SCC, control group B, and also in 49 cases of healthy volunteers occupied same ages and spinal cord segments with group A and B, normal control group C. Average FA values and ADC values at the injury segments of group A and B, and also at the same segments with group A and B in group C were calculated. The Average differences of FA values and ADC values between group A and B, and also between group A and group C were analyzed. Results The significantly statistical difference of increased average ADC value (1103.25±49.65)×10- 6 mm2 /s and decreased average FA value(423.53±58.42)×10-3 in group A than average ADC value(827.63±218.54)×10-6mm2 /s and average FA value (540.03±38.14)×10- 3 in group C were found. The significantly statistical difference of decreased average ADC value and increased FA value in group A compared with the average ADC value (1301.35±221.15)×10-6mm2 /s and average FA value (377.12±67.31)×10-3 in group B existed. Conclusion DTI is highly sensitive to SCC and possess important significance in grading diagnosis of spinal cord injury