The invention relates to a decision utility-based energy Internet information value evaluation method. The method includes the following steps that: 1) an optimization objective in an energy local area network decision making process is determined, wherein the optimization objective is that the operating cost of an energy local area network is minimum in an optimization cycle; 2) a decision variable Xt in the energy local area network decision making process is determined; 3) uncertain factors in the energy local area network decision making process are determined; 4) it is determined that Yt is a random vector which is subject to a joint probability density function f (Yt); 5) operating cost minimization of the energy local area network in the optimization cycle is sought; 6) a solving decision maker learns complete information; and 7) the operating cost of the energy local area network can be saved after the complete information is obtained.