So far, with the development of the network, a new era of cloud computing is gradually advancing. Cloud services based on cloud computing technology have long become a new business model with broad application prospects. This paper studies the design of a high-tech enterprise financial system based on cloud service and task scheduling algorithm. The project can fully meet the following requirements: the establishment of a financial management system can improve the degree of automation and computerization of financial management and reduce the labor intensity of financial personnel. It is an analysis and decision-making program for the financial management of high-tech enterprises that can be shared using financial management software. Using a financial management system in actual work can achieve rapid financial data entry and improve the accuracy of data accounting. The high-tech enterprise financial management system is a very suitable and convenient management system, which substantially meets the daily business needs of high-tech financial management of enterprises.