The invention relates to a CD-based Hp Tru64 system recovery method. The method is used to make a backup of a source host where an operating system and an application environment are installed, burn the content of the backup, and carry out the quick recovery of a target host through the burnt CD in the situation of few artificial interventions. The method comprises the following main steps: usinga vdump command to carry out the CD burnt backup of Tru64 with a safe and complete application environment; according to the real process of the Tru64 system installation and recovery, configuring anexecution script, CD replacement indication information and a script command of the CD; and compiling an automatic script executor program, system modification software of the target host, and the like. The method can realize the quick installation and recovery of the Tru64 system with the same hardware configuration, and has the characteristics of being carried out without opening a host case, having low requirements on installation technicians, and the like.