Jarosite slag is a kind of hazardous waste produced in the process of hydrozinc smelting，and the efficient enrichment and recycling of zinc are of great significance to promote the green cycle development of the hydrozinc smelting industry. Since reaction temperature of the existing fumeization method is too high，the Pb and In elements will volatilize from the jarosite slag at the same time as the Zn element，and the selective volatilization of zinc in the jarosite slag cannot be realized. In this paper，Factsage 8. 1 thermodynamic software is used to analyze the feasihility of selective volatilization and recovery of zine from jarosite slage by fumeization method and the main factors affecting the ZnO mass fraction in smoke and dust during the fumeization volatilization process are experimentally studied. The results show that Zn is first reduced and then oxidized during the fumigation volatilization process，and finally enriched in the form of oxides in the smoke and dust. Under the optimal test conditions ( fumigation volatilization temperature of 1 050 ℃，fumigation volatilization time of 150 min，and carbon distribution mass fraction of 20% ) ，the volatilization rate of zinc is 99. 51% ，and the mass fraction of ZnO in soot is 99. 58% ，which realizes the selective recyching of zinc from jarosite slag.