Abstract: A model of dynamic system of consumer’s behavior was established by combining the classical consumer’s behavior theory with the modern current consumer’s behavior theory.The dynamic character of this system was discussed.The close-ring control tactics was given in order to follow gradually the track of the consumption C^ which was determined by the equilibrium growth of national economy and by the per labor consumption.The random optimal control tactics was given in order to follow the track of the consumption C^ and to make consumers’welfare optimum.

Key words: consumer’s behavior theory, dynamic character of linear discrete system, linear regulator, random optimal control