Objective To value the effect of primary liver carcinoma after the operation by TACE using the 3.0T MRI. Methods Analyze retrospectively 25 cases of primary hepatic carcinoma patients which of them must review regular MRI, DWI (b=800)scanning and MR dynamic increase 3 days before operation and 1 month after operation. Through and late follow-up, part of the DSA and CT enhanced scan findings were observed preoperative tumor area, lipiodol deposition area, tumor necrosis, areas of tumor recurrence in the DWI (b=800) signal characteristics and ADC values, dynamic enhanced scanning time signal curve, MRI signal characteristics, so as to analyze the tumor necrosis and recurrence. Results 25 lipiodol deposition area ADC value compared with preoperative tumor lesion area increased significantly, dynamic contrast enhanced MRI showed no strengthening. T1WI and T2WI low signal-based, local mixed signals. 22 liquefaction necrosis ADC value was significantly higher compared with that before the tumor lesion area, dynamic contrast enhanced MRI 18 no clear enhancement, no enhancement in the arterial phase 4, delay local strengthening; T1WI low signal, T2WI high signal. The residue remaining relapse region, mostly in internal lesions after intervention, ADC value compared with preoperative tumor lesion area was no significant change in dynamic contrast enhanced MRI showed a 17 liter downhill speed main type, most of the short length T1WI T2WI high signal. Portion of the annular homogeneous enhancement nine late follow-up disappears, the inflammatory response Conclusion Dynamic MRI scan combined with DWI can accurately analyze the tumor necrosis after TACE lesion and recurrence characteristics of residues focal signal change, can be used to evaluate the effect of early TACE.