In order to solve the problem of launch safety of propellant charge for high performance gun, the evaluation method of launch safety of propellant charge was studied. The physical mechanism of bore burst caused by propellant charge was revealed in this paper, the test methods for combustion and mechanics situation of the propellant charge, dynamic compression fracture of propellant charge and dynamic vivacity of propellant charge were established; the evaluation method for launch safety of propellant charge was also presented. This method could provide theory basis and technology tool for evaluating launch safety of propellant charge.