Target vulnerability assessment software can help combat personnel to obtain the vulnerability of enemy military targets under the attack of our warhead, which is of great significance to the command decision-making on the battlefield. In view of the characteristics of battlefield targets, this paper carries out the design work of target vulnerability assessment software, which is used to evaluate and calculate the damage results of a certain military target under the attack of a certain type of warhead, and studies the transformation method of assessment module coordinate system, which provides technical reference for the subsequent development of related target vulnerability assessment software.