To provide a fiber rope for a guard fence for a vehicle, which is equivalent in strength and weatherability to a conventional one made of steel, and is improved in constructibility and a degree of impact absorption.

This fiber rope A for the guard fence for the vehicle has a double structure with a core portion 1 and a covering portion 2 for covering the core portion 1. The covering portion 2 has the weatherability, and comprises a braid structure of 12 strokes or more in which 12 strands or more are combined together with no space between. Also, the core portion 1 comprises a braid structure which has a lead set six times or larger than an outside diameter of the core portion 1 by combining the 12 strands or more together.