The present application relates to a curtain rod hanging structure, which includes a vertical rod and a hook body, the hook body is provided on the vertical rod, an installation groove is provided on the inner wall of the hook body, and an adjusting pad is detachably arranged in the installation groove and the adjusting pad is configured to hang the curtain rod. The present application realizes hanging curtain rods with different diameters by replacing the adjusting pad in the installation groove, eliminating the need of replacing the overall curtain rod hanging structure and providing the effect of facilitating the installation and high applicability.