Abstract: Radiation biodosimetry plays an important role in the medical treatment of each radiation accident, mainly by dicentric and cytokinesis-block micronucleus(CBMN) analyses. Biodosimetry studies focus on the rapid and high-throughput radiation biodosimeter. These studies include not only the automatic analyses of dicentric and CBMN, but also the molecular markers, such as DNA double-strand break and gene and protein expression. Metabolomic and serology analyses are also explored. The new progress in radiation biodosimetry over the past three years was reviewed in this paper.