Abstract: A rotatable connector for medical use is provided, applicable to connecting infusion tubings or serving as part of infusion tubing, including a first tube, a second tube, a casing cover, and an elastic sealing member; the first tube having a coupling end, the coupling end having an outer wall disposed with a stopper; the second tube having a docking member; the casing cover having one end sheathing outside of stopper and the other end fixed to docking member; a housing space being formed by inner wall of casing cover and outer wall of coupling end; the elastic sealing member being disposed inside housing space, tightly adhered to outer wall of coupling end as well as diving housing space into two disconnected spaces. As such, when applied to infusion tubings, the first tube of the connector of the present invention can rotate to resolve a blockage and free of leakage.