A safety blood-collection needle, comprising a needle base (1), a needle hub (2), a flexible tube (4), a straight needle (12), a straight needle shaft (14), and a needle head (6) the needle hub (2) is disposed on the needle head (6) the two ends of the flexible tube (4) are in communication with the straight needle (12) and needle hub (1) the straight needle shaft (14) is arranged at the connection of the straight needle (12) and the flexible tube (4) the safety blood-collection needle further comprises a protective cover (3), a slider (5), a handle (13), and a position limiting mechanism the needle base (1) is cylindrical, one end of the needle base (1) is fixed and is in communication with the needle head (6), and the other end is connected to the flexible tube (4) the slider (5) is cylindrical, open at both ends, and movably sleeved on the needle base (1), and the length of the slider (5) in the direction of motion is greater than the length of the needle head (6) the axial length of the needle base (1) is greater than length of the needle head (6) the position limiting mechanism is arranged on the slider (5) and needle base (1) the handle (13) and the needle base (1) are fixed together, and the handle (13) abuts against the slider (5) the protective cover (3) is coveringly arranged outside the straight needle (12) and is secured to the straight needle shaft (14) by screwing. The slider (5) is arranged on the needle base (1) and slides in order to cover the needle head (6), so that safety is greatly increased when handling the needle head (6) following blood collection the use of a spring-type needle head is avoided, thus reducing the suffering of the patient.
