The B82MnQL wire rod for used as the material for hot dip galvanizing experiment, using tensile testing machine, repeated bending testing machine on the mechanical properties were tested。The microstructure of the cross section、the axial section and the drawing fracture were analyzed by means of optical microscope and scanning electron microscope.The results show：The B82MnQL wire rod tensile strength increased from 1250MPa to 1670MPa.The shrinkage rate of the cross section decreased from 32.5% to 7%.Used the new technology and the formula of the assistant plating,the tensile strength of the B82MnQL steel wire after galvanized was decreased by 8%,lower than traditional 10-15%. After stabilization , the B82MnQL"s torsion value about 20 times, repeated bending about 6 times, strength increased from 1710MPa to 1650MPa, The hardness value is higher than that of the galvanized, raised from 430HV to 450HV, and uniformly dispersed.