Abstract: The equipment maintenance is a very important task in the electrical network system operation, the scientific and reasonable maintenance plan is in favor of raising the reliability of power system operation, and can raise the modernization of enterprise management standard and beneficial result. The article combines real characteristics of Liaoyang district network to consider thoroughly the influence factors for formulation of rural network maintenance schedule, and abstractly reaches the mathematical model being fit for the optimization of the distribution network maintenance schedule, and makes corresponding improvement in Genetic Algorithm according to the analysis of the rural network of real question. Powerful operation function of MATLAB was used in combination of Visual Basic and the software of rural network pre-arrangement power cut management system was worked out. Applying the software has been in progress optimized. The results indicated that the repeated assignment was effectively avoided in the maintenance schedule of optimization, the power cut times and quantity of electricity were greatly reduced.