Objective To investigate the application value of head dual-energy CTA in the diagnosis and treatment of active cerebral hemorrhage. Methods Patients with cerebral hemorrhage admitted in our hospital between February 2012 and June 2016 were analyzed retrospectively. The shape, location and volume of hematoma were recorded. The sensitivity and specificity were compared between fusion iodine graph and nonlinear fusion graph in the diagnosis of active cerebral hemorrhage. Results Among 76 cases, 50 cases had regular hematoma, and 26 cases had irregular hematoma. There were 44 cases with hematoma in thalamus and basal ganglia, 21 cases in lobar area and 11 cases in subtentorial area. There were 18 cases with active hemorrhage and 58 cases with non active hemorrhage. The sensitivity of fusion iodine graph in the diagnosis of active cerebral hemorrhage (94.4%) was higher than that of nonlinear fusion graph (66.7%) (P<0.05). The diagnostic specificity of fusion iodine graph was 96.6% while of nonlinear fusion graph was 93.1%(P>0.05). Conclusion The application of dual-energy CTA fusion iodine graph can improve the sensitivity in the diagnosis of active cerebral hemorrhage. Timely use of dual-energy CTA can provide guidance for the follow-up treatment.