In order to explore the low-velocity impact resistance of 2.5D interleaved laminated structure composites，2.5D interleaved laminated structure test panels，conventional interleaved laminated structure test panels and same laminate laminate test panels were prepared.The performance of two interleaved laminated composite structures and laminated composites under low-velocity impact damage was investigated by drop weight test and post-impact compression.The results show that under the impact of the falling weight，compared with the laminated structure，the surface impact deformation area of the 2.5D interleaved laminated structure is reduced by 73.79%，the internal damage projection area is reduced by 21.66%，and the compressive strength after impact is increased by 10.53%.The 2.5D interleaved laminated structure exhibits excellent resistance to low-speed impact deformation and damage.