According to the analysis of stray light in high power solid-state laser system, the ghost image was 3D demonstrated in the structure model of the facility by software Wildfire-PRO/E3.0. The simulation model to describe the ghost-image distribution was also established. The position of the one-or-more order ghost image in the facility can be fully displayed in all directions so that the ghost-image harmfulness can be easily found. The hazard analysis of typical ghost-image was made and method to avoid the damage of ghost image was put forward. The research results will be in favor of stray light management.