PROBLEM TO BE SOLVED: To provide a medical tube not eluting a plasticizer such as a phthalate ester, made of a non-vinyl chloride resin, having excellent flexibility, transparency, low adsorptivity/absorbency of medicine, pump circuit suitability, chemical stability, and bending (kink) resistance, suppressing blocking, and having heat resistance adaptive to various kinds of sterilization methods.SOLUTION: This medical tube is a single-layer tube made of a specific cross copolymer, or a multilayer tube having a multilayer structure which includes a layer made of the specific cross copolymer. and having a thickness occupying 50% or above of a wall thickness of the tube. The tube is crosslinked by energy beam (electron beam) irradiation after molding.
