A disposable outer periphery sleeve infusion device comprises a vein puncture needle component (1), and a medicament liquid filter (3), a flow rate regulator (4), a drip kettle (5) and a bottle plug puncture device (6) which are connected in sequence through hoses. The infusion device also comprises a catheter component (2), the catheter component (2) being directly or indirectly connected with the medicament liquid filter (3). By the catheter component (2), a steel needle (11) is pulled out and a catheter (21) is remained in vivo after vein puncture. When a patient moves restlessly or changes body positions, the catheter (21) would not damage a blood vessel. The vein puncture needle (1) is directly or indirectly connected with the medicament liquid filter (3), and different connection modes can be selected aiming at different situations.
