The invention discloses a steel wire pre-distribution device for steel wire rope socket casting. The device is used for fixation between a steel wire rope and a socket, and comprises a centering device, a pre-tensioning assembly and anti-sliding assemblies, wherein the centering device sleeves the steel wire rope and is connected with the bottom end of the socket, the pre-tensioning assembly comprises a pre-tensioning upper hole plate, a pre-tensioning lower hole plate and a pre-tensioning clamp, the pre-tensioning clamp is arranged on the pre-tensioning upper hole plate so as to tension eachsteel wire of the steel wire rope, the plurality of anti-sliding assemblies are connected to the steel wires in a sleeving mode correspondingly and are connected with the pre-tensioning lower hole plates so as to fix the steel wires. The invention further provides a using method of the steel wire pre-distribution device for the steel wire rope socket casting. The steel wire pre-distribution devicefor steel wire rope socket casting is convenient to use and easy to operate, steel wire distribution after casting is more uniform, the overall stress of the steel wires is ensured, and the device has the advantages of being simple in design, high in structural strength, reliable in safety performance and convenient to operate, can be used for steel wire rope socket casting devices with various designs and manufacturing of various steel wire rope sockets and is convenient for standardized operation.