To address the challenge of efficient separation of precious metals and impurities in gravity concen‑trate, a process involving gravity concentrate pretreatment-sulfuric acid roasting-lead phase transformation-acetic acidlead leaching-lead‑bearing solution cyclic leaching-precious metal enrichment smelting was developed. The processparameters were systematically optimized to achieve efficient enrichment and recovery of gold and silver. Results showthat sulfuric acid roasting（roasting temperature 600 °C, sulfuric acid dosage 0.8 L/kg, roasting time 2 h）effectivelyconverts galena into lead sulfate; lead phase transformation（conversion temperature 60 °C, Na2CO3 dosage 400 g/kg,reaction time 2 h）and acetic acid leaching（leaching temperature 70 °C, acetic acid 0.6 L/kg, liquid‑solid ratio 5∶1,leaching time 2 h）realize selective lead leaching, with a lead leaching rate exceeding 90 % and a leaching residueyield of 39.32 %. The alloy gold obtained by precious metal enriched smelting contains 86.43 % Au and 2.29 % Ag,with gold and silver recovery rates of 99.93 % and 98.96 %, respectively. This multi‑stage synergistic optimizationprocess combines high efficiency with engineering feasibility, providing a reliable technical solution for high‑valueutilization of gravity concentrate and similar complex materials, and holds significant industrial application value.