Objective To explore MRI diagnostic value of intervertebral disc infection.Methods 10 cases of intervertebral disc infection proved by operation and pathology were restrospectively analysed.Results 15 intervertebral discs were invalved in 10 patients.Among them,lumbar vertebral discs were only invalved in 7 cases,lumbar and sacrum vertebral discs were in 3 cases simultaneously.The involved discs were long T 1 and long T 2 signal intensity in 8 cases equal T 1 and short T 2 signal intensity in 2 cases.The soft tissue around vertebral was involved.The involved discs and soft tissue were enhanced in varied degrees on Gd-DTPA contrast-enhanced scan in 6 cases.Conclusion MRI is of important value in diagnosis of vertebral disc infection.