Fiscal revenue is not only the most important form or source of revenue for a country, but also the government will submit a draft budget at the beginning of each year, and make reasonable arrangements for expenditure in all aspects according to the forecast of fiscal revenue for that year. This paper mainly studies the introduction of cloud data analysis technology into economic statistics. Through the analysis of cloud computing and big data analysis technology, this paper collates and summarizes the relationship between big data analysis and cloud computing, and uses data mining to forecast fiscal revenue. The results show that the predicted results are accurate, and the relative error between the predicted value and the true value is less than 1%. The economic statistics method based on cloud data proposed in this paper can effectively predict local government fiscal revenue and play a role in local government's economic development planning.