In order to evaluate the digitized armored regiment command decision-making timeliness, based on its flow of command decision-making, set up the evaluation index system of timeliness to, get the attribution value of each index of the evaluation model by using cloud gravity center theory, then combining the example, validate the model by the steps that getting numeral characteristic of cloud model, representing performance index system state, weighting deviation and reviewing comment collections. The results show that this method can be used to evaluate the digitized armored regiment command decision-making timeliness and apply the basis for perfecting the command decision-making system, optimizing command decision-making activities, developing the more scientific decision-making and improving the command effectiveness.