Big data brought about by the basic data changes: big data makes the number of scale is much larger than the traditional data, data information is more accurate; break through the traditional budget relies on financial data, there will also include audio, video, pictures, geographic information, time and other types of data information, these new types of data make the comprehensive budget in the initial budget development and analysis to solve the problem on a more basis, to provide the accuracy of the budget development, Timeliness and comprehensive analysis capabilities. In addition, changes in analytical thinking: big data applications in analytical thinking can be found everywhere, a variety of analytical methods, complex modeling, etc., in the comprehensive budget management should also be technology to do a strong support, the current multi-dimensional data warehouse technology designed to meet the needs of the comprehensive budget software data analysis, but in the future it would be best to support some of the algorithms into the data mining.