Objective To analyze the feasible of MRI in the detection of neurogenic bladder(NB) which based on sacral plexus (SP) images. Methods 127 patients with neurogenic bladder were included in this retrospective study from 2013 to May 2015. All patients underwentT2WI、T1WI、 3D-DESS and 3D-SPACE using a 3T MRI scanner before treatment. Magnetic resonance imaging evaluation was based on the SP imaging-reporting and PACS system. 98 consecutive patients with suspected neurogenic bladder, which was diagnosed SP diseases. The symptoms range from acute(n=20)/ chronic(n=46) retention of urine, nocturia(n=17) , urinary disorders(n=46) and other significant symptoms(n=29);MRI findings were recorded by two radiologists and confirmed by a super radiologist. Results 119 patients can be diagnosed by MRI, include 69 tumors, 28 high signal intensity in T2WI and 2 patients with gangliocytoma. At the same time 1 patient with neurofibromatosis, 18 with tethered cord syndrome. Tumors are most can be detected in S2(n=62), S1(n=41), S3(n=28), S4-5(n=24) respectively. The diameter of tumors range from 5-15mm, ≥15mm(n=34), 10~14 mm(n= 36), 5~10mm(n=37), ≤5mm(n=61).MRI findings of tumor are high T2WI and equisignal T1WI. Conclusions MRI is significantly superior in the evaluation of the detail of SP. Combined 3D-DESS and 3D-SPACE-STIR provide a noninvasive tool in the evaluation of NB.