To explore applicable conditions of various biodosimetry estimation methods for acute ionization ra-diation damage, the advantage and disadvantage of different radiation dose estimation as well as application potentiality w reviewed in this paper. Considering its characteristic the applicable condition of each mean for radiation dose evaluation should be suggested. In case of acute ionization radiation damage, applicable means for rapid dose estimation are in vivo EPR measurements of teeth, EPR measurements in fingernails, total automatic micronucleus assay and total automatic γ-H2AX assay.Cited