To improve locking operability to the vehicle body side of a tie-down hook while securing the strength of a mounting part of a crash stroke and a tie-down hook at the time of the front collision of the vehicle.

This structure is provided with a crash box 5 extending forward from the front end of a front side member 1 and crashing at the time of the front collision of the vehicle. Both ends of a radiator panel lower 3 are arranged approximately below the front end of the crash box 5, and the end side of the radiator panel lower 3 is connected with the front end side of the crash box 5 so as to install a pair of right and left lower panel sides 8 extending approximately upward and downward.