The invention relates to the technical field of auto parts, in particular to a front-bumper support mounting structure. The front-bumper support mounting structure comprises a mounting support and mounting holes and is characterized in that a positioning clamp plate is integrally formed on the mounting support, the positioning clamp plate includes a first clamp plate and a second clamp plate, a certain interval exists between the first clamp plate and the second clamp plate, and an accommodating cavity for mounting a front bumper and a fender is arranged between the first clamp plate and the second clamp plate; the mounting holes are formed in the front bumper and the fender, the mounting holes axially coincide with screw holes in the first clamp plate and the second clamp plate, a fastening ring is arranged on the outer side of the second clamp plate, and a thread is arranged in the fastening ring. The front-bumper support mounting structure is stable and reliable in assembling connection, low in assembling cost, high in assembling efficiency and the like.