This paper investigates concrete slab cracking induced by embedded composite batter piles within structural slabs. Utilizing Finite-Element Analysis and concrete plastic damage theory, a computational model of the concrete slab-pile interaction was developed. The results show that the tensile damage of the concrete slab concrete exhibits a spatial distribution characteristic, with early and high damage near the top and bottom surfaces and lower damage in the middle. Vertical cross-sections reveal damage concentration on the pile hole sidewalls adjacent to the top surface. Plan views demonstrate that damage initiates first at the slab top surface adjacent to the pile hole perimeter. Subsequent load increases intensify damage along the hole walls, ultimately leading to brittle cracking. Severe damage in the form of an arc is on the bottom of the plate from both sides of the hole. Although the waterproof steel plate effectively inhibits vertical tensile damage progression along the hole walls, it does not impede damage development on the top and bottom slab surfaces. These findings hold significant value for engineering practice.