基于理论分析和初步研究，本文提出一种新型溶金银试剂─—石硫合剂（ＬＳＳＳ）。本试剂可用廉价石灰（或氢氧化钙）硫磺及添加剂通过火法或温法合成。其水溶液是一种富含Ｓｘ（２－）和Ｓ２Ｏ３（２－）等在碱性介质中与金、银能形成稳定配离子的混合溶液。文中对影响ＬＳＳＳ的制备及溶金银的几种主要因素进行了讨论。并给出了诸如铜氨配离子等有效添加剂。 Based on theoretical analysis and preliminary studies, this paper presents a new solute silver reagent ─ ─ lime sulfur mixture (LSSS). This reagent can be cheap lime (or calcium hydroxide) sulfur and additives by fire or warm synthesis. Its aqueous solution is rich in Sx (2-) and S2O3 (2-) and other alkaline medium with gold, silver can form a stable solution with ion mixed solution. In this paper, the preparation of LSSS and the main factors affecting the dissolution of gold and silver are discussed. And gives such as copper ammonia ion and other effective additives.