The needle-free connector (1) for an infusion line comprises: a containment body (4) which can be coupled to the line, comprising an entry (7) and an internal pipe (8, 17) suitable for the fluid-dynamic communication with the entry (7) and with the line； and a sealing element (14) suitable for moving between an occlusion position wherein it seals the entry (7) and an opening position wherein it frees the entry (7)； wherein the connector (1) is constituted by two members which are the body (4) and the sealing element (14), each of which is made in a single body piece.
