Abstract：The kinetics of adsorption and desorption of AuCl4- on macroreticular polyacrylate resin (analogous to Amberlite XAD-7) were studied. The rate determing step in both processes is film diffusion at the initial stage followed by particle diffusion. The effect of HCl concentration on the adsorption of AuCl4- is insignificant; the diffusion coefficient DAuCl4- = 4.4 ?10-8 cm-2 s-1 at 25?and adsorption activation energy DEa = -13.0 kJ mol-1. The desorption kinetics for the process using HCl-thiourea as desorption agent were studied. The relation between the liquid film diffusion constant R and the particle diffusion constant B with resin particle radius r0 follows the G. Boyd (1947) equation.