Fuente: Wipo "BigData" The invention relates to the technical field of data processing, in particular to a data-isolated big data software development and operation system, which comprises a database generation module for acquiring original data from an external data source and constructing a first database and a second database; the first development module constructs a data processing code according to the test data; the second development module is used for synchronizing the data processing codes and constructing data processing software for the original data; and the operation module calls data processing software to process and output the original data according to the data analysis request transmitted by the request interface. The method has the beneficial effects that by introducing the database generation module, non-confidential test data is further constructed on the basis of original data, a developer constructs a data processing code on the basis of the test data, and then the second development module synchronizes the data processing code. Through the process, the development process of the data analysis software is realized, and the risk of original data leakage is avoided.