In this article, the manifestations of the DSA in 100 patients with primary hepatic carcinoma have been studied. According to the haculta the authors put forward a method for classification by DSA findingas of the hapatic carcinoma, It can be expressed in A B C D. A represents the site and shape of the tumor; B represents the blood supply; C represents having or not having arterial - venous fistula; D represents the condition of the portal vein. Simnltaneouly the authors pointed out its clinical significance by reflecting the whole changes of the fumor in morpholygy and hemodynanics useful to plan an interventioanl therapy, and to assess the prognosis.