The invention discloses a method for preparing an organic copper complex of organic copper antibacterial polyamide yarn. The method for preparing the organic copper antibacterial polyamide yarn comprises the following steps: mixing urea, hexanolactam and acetamide according to a ratio of 1:(0.2-0.4):(0.2-0.4) in parts by weight to prepare a coordinated ionic liquid adding sodium chlorate, potassium permanganate, sodium peroxide and copper powders according to a ratio of 1:(1-2):(1-2):(2.5-2.9) in parts by weight into 3-3.5 parts by weight of the coordinated ionic liquid to prepare the organic copper complex slicing the organic copper complex and PA6 which are in a ratio of (80-86):(14-20) in parts by weight and putting them into a twin-screw extruder to prepare a spinning fusant, spinning, cooling and winding to form a cylinder. In the present invention, copper elements exist in fibers in an ionic state and form chemical chelation with fiber molecules, so that the organic copper complex is unlikely to fall off and has remarkable antibacterial functions. Furthermore, the addition amount of organic copper is reduced, the fiber color is lighter, which is beneficial to dyeing, therefore, the organic copper complex has broad market development prospect in the production field of textiles with health care functions.
