An automatic needle withdrawing integral vacuum blood sampling apparatus with a needle tip protective sleeve, which comprises a puncture needle seat (4), a puncture needle tube (11), a flexible connecting tube (13), a blood sampling needle tube (12), a blood sample collection tube (2), a blood sampling needle seat (3), the needle tip protective sleeve (5) and an automatic needle withdrawing apparatus (6). A tube core of the vascular puncture needle tube (11), a core hole of the puncture needle seat (4), the tube core of the flexible connecting tube (13), the tube core of the blood sampling needle tube (12) and a tube cavity of the blood sample collection tube (2) with a pierced sealing layer (21) form a blood channel. The puncture needle tube (11), puncture needle seat (4), needle tip protective sleeve (5) and automatic needle withdrawing apparatus (6) form a puncture needle component. The puncture needle seat (4) and the puncture needle tube (11) inserted thereon are installed in an inner cavity of the needle tip protective sleeve (5). The flexible connecting tube (13) that enters from a rear-end head of the protective sleeve is connected to a tail end of the puncture needle seat (4). The automatic needle withdrawing apparatus (6) comprises a compression spring (61) and a brake mechanism (62). The puncture needle seat (4) and puncture needle tube (11) form a sliding component that can slide backward relative to the protective sleeve (5). After the brake mechanism (62) is released, the sliding component loses braking and slides backward as been driven by a pre-tightening force of the compression spring (61). With the retreat of the sliding component, the puncture needle tube (11) retracts to the inner cavity of the protective sleeve (5) until it completely enters the protective sleeve (5).La présente invention concerne un dispositif intégral de prélèvement de sang sous vide à rétraction automatique daiguille avec un manchon de protection de pointe daiguille, qui com
