The invention discloses a method for slice deployment born by a network arrangement layer of an intelligent power grid. The method is characterized in that the method comprises the steps: dividing a network arrangement layer of the intelligent power grid into a path module, a weight module, and a utility module, wherein the path module determines the number of paths between a source node and a destination node according to a network topology structure, and stores the traversed paths in a matrix by establishing a path storage matrix; the weight module dynamically adjusts the weight of the neural network by using a momentum gradient descent algorithm according to the requirements of different types of power businesses for weight indexes, and trains the neural network by using test data; theutility module uses the path stored by the path module; scores of all paths corresponding to to-be-processed businesses are expressed by applying a utility function, and the path with the highest utility score is selected, and slice deployment borne by a network arrangement layer of the smart power grid is completed, and reasonable distribution of intelligent power grid resources is met, and various requirements of various types of businesses are met, and the service quality is improved.