The invention relates to a method of comprehensively recovering lead and zinc in high mud carbonate lead-zinc oxide ores by combining beneficiation and smelting to solve the problem that zinc concentrate and lead concrete low in mutual content ratio in high mud carbonate lead-zinc oxide ores cannot be separately obtained by means of conventional vulcanization and sorting processes and the difficulty of comprehensively recovering lead and zinc is great. By means of dissolving difference of smithsonite and cerusite in the same pH region, zinc and lead are dissolved selectively so as to achieve the purpose of comprehensively recovering zinc and lead, high energy consumption of roasting and volatilization is avoided, and meanwhile, pollution of exhaust gas and dust is reduced and the processing flow is shortened.