Forming mold of light guide strip capable of emitting light uniformly and using method of forming mold

The invention discloses a forming mold of a light guide strip capable of uniformly emitting light and a using method, and belongs to the field of injection molds. A forming die for a light guide strip capable of emitting light evenly comprises a movable die unit and a fixed die unit, a die core assembly is arranged between the movable die unit and the fixed die unit, and a cavity used for containing a molten material to form the light guide strip is formed in the die core assembly; the mold cavity is characterized in that the mold cavity comprises a runner used for placing the support; the forming cavities are located on the two sides of the runner and used for forming the working sections of the light guide strips; a smooth tooth groove is formed in the cavity wall of the forming cavity and used for forming smooth teeth in the working section of the light guide strip. The extension cavity is connected with the forming cavity end to end, is positioned between the forming cavity and the runner and is communica