The thermal decomposition of the cobalt dichloride hexahydrate and its kinetics were studied by TG and DTG technique under the non isothermal condition with nitrogen atnosphere.The non isothermal kinetic data and kinetic parameters were evaluated by means of integral and differential methods.The most probable mechanism functions of the thermal decomposition reaction for the first stage are: f(α)=(1-α) 2 and g(α)=(1-α) -1 -1. The thermal decomposition of the cobalt dichloride hexahydrate and its kinetics were studied by the TG and DTG technique under the non isothermal condition with nitrogen atosphere. Non-isothermal kinetic data and kinetic parameters were evaluated by means of integral and differential methods. The most probable mechanism functions of the thermal decomposition reaction for the first stage are: f (α) = (1-α) 2 and g (α) = (1-α) -1 -1.