Selective acid Leaching and beneficiation process was carried out to recover gallium from gallium-containing slag.The experiment results of acid leaching tests showed that the leaching rate of Ga, A1 and K in the slag were above 83%,58% and 92% respectively, while the slag was leached with the liquid-solid ratio of 4:1 under the temperature of 80oC for 2 hours.Results of selective enrichment experiments of gallium indicated that the enrichment ratio of gallium was more than 97%also the gallium-rich slag formed which was about 4100g/t with the leaching condition of 80oC for 2 hours and pH was controlled between 2.4 to2.6.On the other hand, with the same circumstances the precipitation rate of A1 and K were respectively less than 20% and 1%, showing different sedimentation behaviors.