Abstract: The invention is a catheter protector harness apparatus. The protective apparatus as worn by an adult, child or infant has a belt that encircles the body from the chest to the back by passing under the arms and which has at least one strap passing over a shoulder. The harness belt and strap are secured behind the back out of reach, if desired, and the catheter is enclosed in a pocket mounted upon the front of the harness belt and formed by folding a flap which depends from the front portion of the harness belt and which is folded about an imaginary hinge-line extending along the front middle portion of the belt to which the flap is attached and which rests against the chest of the patient's body.