Abstract: Purpose: Study the meaning in diagnosis for double or more-phase scanning display technique to liver which inside smaller than 3 cm or CT performance non-typical small blood lump of liver, to discriminate that character in order to get accurate diagnosis. Method: Adopting double or multi-period dynamic scanning for whole and local liver display. Result: The diameter is smaller than 3 cm of small hemagioma of liver which display at strengthen scanning performance present complicated and diversified images. Conclusion: Small hemagioma of liver that diagnosis correctness closely related with the imaging discriminate and the scanning technique, but the observational delay the density of the infection focus, its high or low degree particularly for the importance.