Disclosed is an intravenous infusion needle with manual needle retraction, the intravenous infusion needle comprising: a needle seat (1) comprising a cylindrical portion (11) and a tail seat portion (12)； a needle tubing (2) with a tail end mounted within the cylindrical portion (11)； a built-in sliding sleeve (3), wherein same a long block with an approximately C-shaped cross-section and two open ends thereof, the cylindrical portion (11) being mounted inside the built-in sliding sleeve (3) and being capable of sliding back and forth； and a protective housing (4), wherein same is an elongated hollow housing with two open ends, with the built-in sliding sleeve (3) being mounted inside the protective housing (4) and being capable of sliding back and forth. The needle seat (1) and the protective housing (4) form a locking structure. Upon unlocking the needle seat (1) and the protective housing (4), the needle seat (1) is pulled backwards, and the cylindrical portion (11) slides into a locked position of the built-in sliding sleeve (3) and is locked. The needle seat (1) continues to be pulled, so that the needle seat (1) drives the built-in sliding sleeve (3) to slide into the lock position of the protective housing (4) and is locked, and at this point, the needle tubing (2) is fully covered by the protective housing (4) and the tip of the needle is not exposed. The device can prevent needle stick injuries and cross infection and can reduce the damage to the inner walls of a patient's blood vessels due to the needle tubing (2), and is miniaturized in terms of product design and is easy to use, and the production process therefor is simple.
