Aiming at the problem of vulnerability analysis and damage assessment of fixed-wing aircraft, we take a typical fixed-wing aircraft as an example, establish a high-precision equivalent model, determine the key components and encode them sequentially, construct a damage calculation model, and introduce the idea of damage weighting factor to calculate the damage probability. Combined with the design parameters of proximity fuzes and explosive-killing combatants to establish the fuse detection initiation, combatant explosion, and damage meta-terminal damage assessment model, the use of bullet-eye rendezvous conditions in conjunction with the visualization technology to complete the simulation of the visual field. It realizes the simulation and visualization of the damage assessment of fixed-wing aircraft by the kill-explosive combat unit, which can provide reference for the damage assessment of fixed-wing aircraft by the kill-explosive combat unit.