The invention belongs to the technical field of vehicles, and discloses a front anti-collision structure for a four-wheeler frame. The front anti-collision structure for the four-wheeler frame is provided with a secondary energy absorption mechanism arranged on a front inclined stiffening beam (3) of the four-wheeler frame, wherein the secondary energy absorption mechanism comprises two secondary energy absorption boxes (5) arranged in parallel and a front anti-collision beam (2); the front anti-collision beam (5) is a U-shaped beam, and the open end of the U-shaped beam is connected to a front transverse support beam (1) of a four-wheeler body; the rear ends of the two secondary energy absorption boxes (5) are welded on the corresponding front inclined stiffening beam (3) respectively, and a primary energy absorption mechanism is connected to the front ends of the two secondary energy absorption boxes (5), and comprises two primary energy absorption boxes (7) arranged in parallel; the rear ends of the two primary energy absorption boxes (7) are integrally connected with the corresponding secondary energy absorption boxes (5) respectively. According to the front anti-collision structure, safety in case of front collision of the whole four-wheeler is improved, the front anti-collision structure is compact in structure, easy to assemble and low in cost, and a production process is simple.