To provide a mower which is attached to a vehicle and is capable of efficiently carrying out mowing while riding in the vehicle without hindrance even if there is an obstacle such as poles for supporting a guard rail, a grove, etc.

This reaping apparatus is equipped with a rod 33 which is attached to a vehicle 25, can be expanded and contracted and extracted in the side direction of the vehicle 25 and with plural cutting blades 4 to be attached to the tip part 33a of the rod 33. The vehicle 25 is advanced in the extended state of the rod 33. When a part of the rod is hit to an obstacle 2, the rod 33 is withdrawn in the direction of the vehicle.