Zero-trust cross-domain data flow processing method

The invention discloses a zero-trust cross-domain data flow processing method, and relates to the technical field of data flow. The system comprises a data transfer unit, a data uploading unit and a data downloading unit, the working process of the data uploading unit comprises the following steps: step 101, loading configuration parameters, and completing initialization; step 102, sending a registration request to a data transfer unit; and step 103, judging whether the registration operation is successful or not, and if yes, continuing to execute. According to the invention, the transmission of the data in different network security domains becomes efficient, credible and secure, an enterprise can be helped to establish a uniform, secure, controllable and convenient cross-security domain data exchange channel internally, the use efficiency of the data is greatly improved, and the release of the data value and the continuous appreciation of data assets are promoted. In addition, safe data exchange has the adv