Aiming at the influence of different impact angles on the radius of penetration explosion crater under the same velocity, the relationship between the impact angle of air-to-ground missile and the radius of damage crater on airport runway is analyzed. The penetration depth and crater radius of the air-to-ground missile were predicted, and the influence of the impact angle on the penetration depth was discussed. Combined with the empirical formula, the calculation formula between the impact angle and crater was given. The results show that the analysis better reflects the impact of a single factor on the damage effect in the penetration phase, and provides a reference for the next operational planning.