CAN LID

The invention is to provide a can lid having both excellent explosion-proof functionality and tapping suitability. A buckling-inducing part 9 allowing simple angle-forming deformation is formed at a plurality of points on the periphery of a panel part 3. A score line 12 is formed, which intersects an imaginary line L1 connecting the centre of the panel part 3 and a centre section of the buckling-inducing part 9. Both ends 12a of the score line 12 are positioned beyond an imaginary boundary line L2, which is perpendicular to the imaginary line L1, on the centre side of the panel part 3. Furthermore, a circular recess is formed in a middle section of the panel part 3, a portion between the buckling-inducing part 9 and an interior side wall 7 in an annular groove is an inclined planar part 10, and the inclined planar part 10 and the interior side wall 7 are linked by an R part 11. 本发明提供防爆功能和冲击检测适应性均优异的罐盖。在面板部(3)的周边部的多个部位形成有成角变形容易的屈曲诱发部(9)，并形成有与将面板部(3)的中心和屈曲诱发部(9)的中心部连接的假想线(L1)交叉的刻线(12)，刻线(12)的两端部(12a)朝向面板部(3)的中心