Abstract: In order to realize the efficient recovery of tin from a low-grade tin ore in Guangxi，ac⁃ cording to the properties of the raw ore，the process flow of jigging，spiral chute coarse and fine classifica⁃ tion tailings discarding-shaking table cleaning-flotation desulfurization-magnetic separation and impurity removal is studied.The spiral chute concentrate with tin grade of 0.83% and tin recovery of 73.19% can be obtained after jigging and spiral chute tailing discarding. The spiral chute concentrate is subjected to shak⁃ ing table cleaning，and the middle ore of the shaking table is reground and reselected. The final shaking ta⁃ ble concentrate with tin grade of 14.09% and raw ore recovery rate of 58.62% is obtained.Tin concentrate with tin grade of 45.09% and tin recovery of 48.78% can be obtained by flotation + magnetic separation im⁃ purity removal process. The magnetic material in the magnetic separation impurity removal operation needs to be reground and re-selected to further improve the tin recovery rate.The comprehensive whole process test adopts the process flow of pre-classification discarding tailings-rocking table gravity separation-rock⁃ ing table concentrate flotation desulfurization-magnetic separation to remove iron. The final high-grade tin concentrate with tin grade of 43.03% and tin recovery of 48.78% is obtained. The grade of medium grade tin concentrate is 16.58%，and the recovery rate of tin is 7.27%. The tin grade in the magnetic material is 3.43%，which can be used as low-grade tin concentrate with tin recovery of 2.33%. The total tin recovery rate of tin concentrate is 58.38%，and the tin grade in the total tailings is reduced to 0.078%，which real⁃ izes the efficient recovery of tin ore resources.

Key words: low grade tin ore, discarding tailings, shaking table gravity separation, magnetic separation