The fixed structure of the steering transmission shaft can improve the rigidity of the fixed structure itself, thus improving the vibration performance and durability.
The fixed structure of the steering transmission shaft is a structure that fixes the steering transmission shaft on the steering support beam, which extends along the vehicle width direction and is fixed at both ends on the side of the vehicle body. The steering support beam includes: a bracket with a front suspension part used to hang the steering transmission shaft on the front side of the vehicle of the steering support beam; And a di brace connecting the bracket and the instrument panel, the bracket comprises a pair of opposite opposite walls, the di brace comprises a pair of opposite fixed walls, the bracket and the di brace are fixed together at the di fixed position, and at the di fixed position, the pair of fixed walls clamp and fix the pair of opposite walls on the front side of the front suspension part of the vehicle.