The invention discloses a high-grade matte-contained copper smelting converter slag treatment process. The process crushes and screens converter slag to feed in a drum type dry magnetic separator for magnetic separation; a white matte nonmagnetic material obtained by magnetic separation directly serves as a copper concentrate product for smelting; and a magnetic material is fed in an ore grinding classification flow consisting of a ball mill and classification equipment, and then is fed in a flotation flow. The process achieves early recovery of copper ores as far as possible to the greatest extent, reduces the material grinding quantity, reduces the flotation grade, improves the treatment capacity of dressing plants, saves the construction investment and the treatment cost of the converter slag, directly improves the enterprise benefit, and solves the development and the utilization of converter slag resources.