To provide a medical tube stabilizing a flow rate in a case of using a roller clamp, withstanding squeeze by an infusion pump, having a superior stability of the flow rate, having little drug adsorption, and having superior elasticity, repulsion restoring property and kink resistance.

This medical tube is composed of compositions of (A) syndiotactic 1,2-polybutadiene and (B) a thermoplastic material, the thermoplastic material B is a triblock copolymer expressed by a general formula XYX, wherein X is a styrene block and Y is an isoprene block, the compositions are formed of syndiotactic 1,2-polybutadiene A of 91-97 mass% and the thermoplastic material B of 3-9 mass%.