Objective To analyze CT and MRI enhanced features of small hepatocellular carcinoma (SHCC) in patients with hepatitis B cirrhosis. Methods From Aug. 2013 to Aug. 2015, a total of 20 patients (26 focuses) with hepatitis B cirrhosis in our hospital were taken as the clinical research objects. The imaging data including the relative enhancement ratio (rER) of enhanced CT and MRI, the focus liver contrast ratio (TLCR) and the time density / signal intensity curve type of the patients were collected and compared in order to analyze their features of MRI and enhanced CT. Results The rER of CT enhanced arterial phase and equilibrium phase in SHCC patients were respectively (58.14±13.45)%, (71.56±16.78)% which were significantly lower than those of MRI (68.79±20.19)%, (82.27±14.36)%(P<0.05). The TLCR of CT enhanced arterial phase, portal venous phase and equilibrium phase in SHCC patients were respectively (14.62±13.74)%,(-6.85±8.28)% and (-14.23±9.64)% which were significantly lower than those of MRI (23.42±12.31)%,(-2.36±6.75)% and (-5.62±11.41)% (P<0.05). The quickly rise and drop type of CT enhanced curves in SHCC focuses was 65.38% which was higher than that of MRI 34.62%, the quickly rise and slowly drop type was 30.77% which was lower than that of MRI 61.54%, and their differences were statistically significant(P<0.05). Conclusion Compared with MRI, the enhanced curves of SHCC focuses in CT whose enhanced features are quickly rise and drop are conducive to show enhanced exit feature of SHCC focuses.