The invention discloses a method for producing a copper alloy wire by semi-solid continuous extrusion and belongs to the field of semi-solid forming. The method for producing the copper alloy wire bysemi-solid continuous extrusion has the steps that firstly, a rectangular ingot is heated to 10-20 DEG C above the recrystallization temperature; then multi-direction multi-pass hot rolling is carriedout, the temperature is reduced to the room temperature, then multi-direction multi-pass cold rolling is carried out, then the ingot is sent into an induction heating furnace for heating, a heated blank is conveyed in an extrusion wheel groove of a continuous extruder, continuous extrusion is realized through a die, and circulating cooling water is introduced into the extrusion wheel to cool theextrusion wheel so as to ensure that the die temperature is in the fixed range, so that the solidification speed of semi-solid metal is controlled, and winding and arranging of the copper alloy wire on a winding machine are carried out after extrusion is completed. By the adoption of the method, the copper alloy wire is produced by using the semi-solid continuous extrusion method, the continuous production of wires of multiple specifications can be realized, the production efficiency is improved, the load borne by the die is lowered, and thus the service life of the die is prolonged.