To provide a novel hose protector for ensuring press-fitting.

This hose protector 4 is loosely attached on the outer circumference of an elastic hose 2 having elasticity for protecting the elastic hose. A sensor section 41 is formed by axially extending a part of a tubular front end of the hose protector 4. According to this hose protector 4, when a heater pipe 12 is press-fitted into the elastic hose 2, an operator can recognize that a bulge section 12b reaches the same position as the sensor section 41 in the radial direction with a change of a press-fitting resistance.