The study investigates the application of a novel laser-resistant composite cladding wire material repair method for addressing column surface damage in mining hydraulic support systems.The effect of cladding speed (ranging from 30mm/s to 80mm/s) on the micro structure,hardness,and wear resistance of the cladding layer was systematically eXamined.Metallo- graphic and scanning electron microscopes were utilized to analyze the micro structure,while a microhardness tester was em- ployed to measure hardness across the cladding layer.Wear resistance was assessed using a reciprocating friction and wear tes - ting machine.EXperiments show that an increase in cladding speed results in a reduction of waviness at the cladding layer-sub- strate interface,stabilization of cladding layer thickness at 1 300 mm,decreased miXing between layers,and a transition in mi- cro structure from columnar to chaotic isometric crystal formations.Furthermore,hardness decreases as friction coefficient ini- tially rises and subseQuently declines.Notably,at a cladding speed of 80 mm/s,the highest friction and fatigue s palling were observed.