To provide an inexpensive hose fastening structure capable of enhancing sealability and coming off resistance between a hose and a connecting part without deteriorating durability and assemblability.

A connecting part 3 of a metal made pipe 2 is fitted and connected in one end of a rubber hose 1 and the rubber hose 1 is fastened and fixed by attaching metal made hose clamp 4 in which pushing and pressing force acts from the outer periphery to the inside of the rubber hose 1. The first bead part 6 for preventing coming off of the rubber hose and the second bead part 7 for regulating the inserting end of the rubber hose are formed in the outer periphery of the connecting part 3. The hose clamp 4 formed of a metal made spring material has a hose clamp body 12 wound in a ring-shape and an erected piece 11 folded outward in a radial direction. The clip 5 constituted of the first engaging part 8 engaging with the outer periphery of the pipe 2 via the coupling part 10 and the second engaging part 9 having an engaging concave part 9a engaging with the erected piece 11 regulates the movement of the rubber hose 1 from the pipe 2.