The interrelation and internal function among the elements of decision-making system in enterprise operation mechanism. It objectively reflects the law of movement and change of decision-makers and determines the effectiveness of enterprise decision-making behavior. Enterprise decision-making mechanism is in the main position in the operation mechanism, which is not only the basis for designing other mechanisms, but also runs through the operation of other mechanisms. A sound decision-making mechanism is a necessary condition for effective decision-making, and its measure is to see whether it conforms to the operational law of decision-making.