The invention discloses an automatic steel wire angle adjusting system for a wire drawing machine. The system is arranged at the rear end of a wire drawing die and comprises a lubricating powder box and a control cabinet, wherein the lubricating powder box is provided with a steel wire outlet hole, the bottom of the lubricating powder box is connected with four telescopic support rods distributed in a rectangle, and the four telescopic support rods are seated on a sliding table capable of moving horizontally on a base; a lubricating powder supply device, a drive mechanism and a central control module are arranged in the control cabinet; and the central control module controls the lubricating powder supply device to supply lubricating powder to the lubricating powder box according to the external input instruction and controls the drive mechanism to drive the telescopic support rods and/or the sliding table.