The invention discloses a server cabinet cable storage rack which solves the problem that existing server cabinet cables are difficult to card and mark. The server cabinet cable storage rack comprises a rectangular back plate (1), a rotating shaft seat (4) and a rotating shaft (5) are arranged at the left side edge of the back plate, the rotating shaft (5) is fixedly connected with a rear side edge of a left side face (6) of a U-shaped cover (3), a left clamping groove (15) in a vertical direction is arranged on the inner side of each of three side faces of the U-shaped cover (3), a clamping joint (18) is arranged on each of four vertical angles of a diamond cable clamping plate (13), a cable clamping groove (19) is arranged at each of four edges of each diamond cable clamping plate (13), and the diamond cable clamping plates (13) are clamped together with the left clamping groove (15), a front clamping groove (16) and a right clamping groove (17) respectively through the clamping joints on the three vertical angles. The server cabinet cable storage rack is simple in structure, convenient to mount, and applicable to mounting and use of and various cabinets.