Laoyachao Gold Deposit is located in the middle of Shuikoushan lead-zinc-gold-silver ore field and is a cryptoexplosive breccia type gold deposit.Based on the previous research results,the method where field geological survey and laboratory analysis and testing are combined is used to study and analyze the morphology and distribution,petrological characteristics,zoning and ore control of cryptoexplosive breccia,on the basis of summarizing the geologi-cal characteristics of the mining area and the deposit in detail.The results show that the gold ore bodies are mainly produced in the cryptoexplosive breccia,and the morphology,occurrence,scale and location are strictly controlled by it.The cryptoexplosive breccia belt is controlled by fault F1,which is a west-dipping vein body with complex composition and strong alteration,and has obvious horizontal and vertical zoning characteristics.Cryptoexplosive breccia and alteration development areas are the main direction to search for the same type of gold ore body in the future.