A high-energy broadband chirped mirror is designed for sub-10-fs high-energy chirped-pulse oscillators and amplification systems. This mirror consists of TiO2/SiO2 quarter-wave coatings for a broad bandwidth and optimized HfO2/SiO2 chirped coatings for increasing the laser-induced damage threshold (LIDT). The calculated results show that the mirror has low group delay dispersion (GDD) oscillation and can withstand high-energy chirped pulse laser in a wide range of 720-880 nm.