A device for locking syringes to infusion pumps comprising a supporting element (2) for supporting a syringe (3), of the type that comprises a substantially cylindrical body (3a) inside which a plunger (3b) is inserted so that it can slide axially, the supporting element (2) being rigidly associable with the substantially cylindrical body (3a), and a coupling element (4) for temporarily coupling the supporting element (2) to an anchoring element (5) of a pump. <;IMAGE>;