In this paper, a high-efficiency adsorbent resin is prepared by nanosecond pulsed discharge plasma to remove Cu(II), Pb(II), and Cd(II). The effects of discharge parameters, pH, and adsorbent dose on adsorption capacity of resins are evaluated. Correspondingly, the pore structure and chemical groups are analyzed using scanning electron microscopy, N 2 adsorption-desorption, and X-ray photoelectron spectroscopy. The equilibrium adsorption capacity of modified resins for Cu(II), Pb(II), and Cd(II) can reach up to 6.84, 10.87, and 9.22 mg/g,