Abstract:Abstract：Adsorption thermodynamics of macroporous resin about rinse water of black carp surimi was studied.The results indicated that the best adsorption conditions of HP20 macroporous resin were ionic strength 150 mmol/L，pH 5，temperature 35 ℃.The adsorption equilibrium was consistent with Freundlich isothermal adsorption equation.With the rising of temperature，the equilibrium adsorption coefficient increased and the adsorption enthalpy was always greater than zero.So the adsorption belonged to an endothermic process.The characteristic constant was greater than 1 and the free energy of adsorption was less than zero which indicated that the adsorption was a spontaneous process.