Objective To evaluate the imaging features of MRI and CT in the diagnosis of hepatic abscess, and to compare the diagnostic value of both in liver abscess. Methods A total of 82 patients with liver abscess were enrolled in our hospital from December 2015 to September 2016, and the general data and imaging data were collected. The imaging features of CT scan and MRI scan were analyzed. The detection rate of liver abscess. Results Of the 82 patients, 66 (80.48%) were single, 16 (19.51%) had multiple patients, and the mean diameter of the lesion was (5.02±1.79)cm. The 82 patients had CT Uniform density of low density or uneven, such as low density density, the appearance of the shape of circular or round, 14.63% (12/82) lesions and adjacent tissue boundary is unclear, some of the abscess around the low density of edema, the central For the abscess, the density is not uniform, CT value is higher than the water and lower than the liver parenchyma. CT enhanced scan, the arterial abscess wall was mild ring enhancement, abscess wall edema around the no enhancement, 63.41% (52/82 ) Circular enhancement of the abscess wall and the surrounding non-enhanced low-density edema band formed a "ring sign". 82 patients with MRI scan T1 sequence were homogeneous or uneven low signal, the surrounding signal intensity between the abscess And liver parenchyma, 73.17% (60/82) MRI scan T2WI fat suppression sequence can be seen in the left lobe of the liver lobulated uneven high signal foci. MRI enhanced scan, the abscess wall was ring or honeycomb enhanced, and visible There is separation, abscess center of liquefaction necrotic area without strengthening The total detection rate of liver abscess was 96.34% (79/82), which was significantly higher than that of CT three-phase enhanced scan (67.70%) (P<0.05). The MRI (24.39% vs 12.19%) (P<0.05). Conclusion CT three-phase enhanced scan and MRI scan have high detection rate of liver abscess in liver abscess, and the combination of two methods can improve the diagnostic accuracy.