Circuit board structure capable of reducing drilling cutting resistance

The utility model provides a circuit board structure capable of reducing drilling cutting resistance, and relates to the technical field of circuit boards. The circuit board structure is formed by laminating a plurality of circuit layers, copper layers are respectively arranged on the plurality of circuit layers, so that a thick copper layer structure is formed after the plurality of circuit layers are laminated, a drilling area is arranged on the thick copper layer structure, a window is arranged in the drilling area, the circuit board structure is simple in structure and reasonable in design, and when drilling is carried out in the drilling area, due to the fact that the window is arranged, the thickness of the circuit board is reduced. And the cutting resistance can be effectively reduced, and the situation of hole deformation caused by pulling the inner layer copper is avoided, so that the drilling processing yield of the circuit board is effectively ensured. 本申请提供一种可以减少钻孔切削阻力的线路板结构，涉及线路板技术领域。所述线路板结构由多层线路