▎ 摘　　要

NOVELTY - Selectively extracting lithium by extracting and leaching resin comprises (1) mixing porous material, trioctylphosphine oxide (TOPO) and organic solvent in mass ratio of 0.5-3:1, where the ratio of TOPO to the organic solvent is 1:30-1:50, stirring, performing solid-liquid separation to obtain TOPO extraction resin, (2) carrying out lithium-ion adsorption with the TOPO extraction resin and lithium-containing solution, and the solid-to-liquid ratio of the lithium-containing solution is 1:10-1:50, and (3) desorbing the extraction resin that absorbs lithium using dilute acid to obtain a desorption solution. USE - The method is useful for selectively extracting lithium by extracting and leaching resin. ADVANTAGE - The method is simple, economical, and recyclable, and has good selective separation and enrichment effect on lithium. DESCRIPTION OF DRAWING(S) - The drawing shows a flow diagram illustrating the method for selectively extracting lithium by extracting and leaching resin (Drawing includes non-English language text).