Confidential data backup method, system and equipment and storage medium

The invention provides a confidential data backup method, system and device and a storage medium, and the method comprises the steps: firstly collecting to obtain a confidential data set, mapping each piece of confidential data to obtain a confidential data field, determining an inertia base point corresponding to each confidential data point in the confidential data field, and according to the inertia base point corresponding to each confidential data point, carrying out the backup of the confidential data; performing data field inertial continuation on the confidential data field to obtain a confidential data inertial space, determining inertial focusing energy corresponding to each confidential data inertial cluster according to an inertial focusing correction factor corresponding to the confidential data inertial space, and performing inertial clustering according to the inertial focusing energy corresponding to each confidential data inertial cluster to obtain a confidential data inertial cluster; accord