PURPOSE: To provide a novel handle guard of a motorcycle which is so constituted as to protrude in and retract from a cowling and be properly used according to situations, such as weather during running and a running place, through the above operation.

CONSTITUTION: Handlebar guards 20 for a motorcycle are arranged in the spots, corresponding to the fronts of left and right handle grids 61 and 6r, of a cowling 12 with which at least the vehicle front of a motorcycle 2 is covered, and protruded from and etracted in the cowling 12.