Abstract:In view of the fact that power-producing enterprises have such features as impossibility of storing products, simultaneity of production and consumption, and the high value of production facilities, this paper formulates the structure of the output-holding sheet of inputs of power enterprises, and on the basis of which this paper proposes mathematical models of input -output, models of output-holding and methods for value -holding analysis of various value-holding assets. On the basis of China's Input-output Sheet of 1992, this paper composes the sheet of output-holding of inputs of Powe Enterprises of 1992, and analyzes the ratio of output -input, the output -holding, the consumption index, output -holding index, distribution index and the structural index for final application, and supplies power enterprises with considerable information for their decision-making.