The kinetic behaviour of aluminum naphthenate/benzene system in the process of gela-tion and degradation wag systematically studied. The results obtained from the kinetic experimentsindicated that the gelation stage was in accordance with a. kinetic model of an auto-catalytic first-orderreaction, and the degradation stage was a simple first-order reaction. The rate constants in these twostages at various temperaturs were measured. And the determined apparent activation energiesfor the gelation stage and for the degradation stage are 27.5±2.0 and 37.7±2.3 kJ/mol, respectively. The kinetic behavior of aluminum naphthenate / benzene system in the process of gela- tion and degradation wag systematically studied. The results obtained from the kinetic experimentsindicated that the gelation stage was in accordance with a. Kinetic model of an auto-catalytic first-order reaction, and the degradation stage was a simple first-order reaction. The rate constants in these twostages at various temperaturs were measured. And the determined apparent activation energies for the gelation stage and for the degradation stage are 27.5 ± 2.0 and 37.7 ± 2.3 kJ / mol, respectively.