This　study　developed　an　efficient　and　sustainable　hydrometallurgical　process　for　the　enrichment　of　gold　and　silver　and　the　stepwise　separation　of　copper,　zinc,　and　lead　from　sulfated　roasted　sand　of　waste　printed　circuit　board　smelting　ash.　Selective　separation　of　copper　and　zinc　was　achieved　by　water　leaching,　and　silver　dispersion　was　reduced　by　controlling　the　amount　of　NaCl　added　during　the　leaching　process.　The　results　of　the　water　leaching　showed　that　the　copper　and　zinc　leaching　rates　were　99.85%　and　99.47%,　respectively,　whereas　the　loss　rate　of　silver　was　2.1%　with　optimal　leaching　parameters.　The　high-chloride-complex　method　was　used　to　study　the　efficient　conversion　and　separation　of　lead　from　the　leached　residue,　and　the　leaching　kinetics　and　conversion　mechanism　of　lead　were　discussed.　The　results　showed　that　under　the　optimal　conditions,　the　leaching　rate　of　lead　was　99.79%.　Leaching　kinetics　analysis　showed　that　lead　leaching　in　the　high　-　chlorine　system　was　controlled　by　a　chemical　reaction;　the　apparent　activation　energy　was　53.63　kJ/mol.　After　the　leaching　of　copper,　zinc,　and　lead,　1.66%　Ag　and　213　g/t　Au　were　enriched　in　the　leached　residue;　and　the　precious　metal　enrichment　goal　was　reached.　The　chlorinated　leachate　showed　good　recycling　performance,　and　a　lead　leaching　rate　of　97.93%　was　obtained　after　three　circulations.　After　cooling,　crystallization,　and　purification,　lead　chloride　with　a　purity　of　99.89%　and　high　economic　and　industrial　value　was　obtained　from　the　lead-rich　leachate.　This　process　has　favorable　and　sustainable　industrial　application　prospects.