Database data backup method and device and computer equipment

The invention discloses a database data backup method and device and computer equipment, and relates to the technical field of database backup. The method comprises the following steps: firstly, acquiring data characteristics of database backup data to be backed up; according to the data features, determining backup value information of the database backup data; judging whether the database backup data needs to be backed up or not according to the backup value information and the current data storage state information of the different-machine server; and if it is judged that the database backup data needs to be backed up, sending the database backup data to a different-machine server for backup. According to the invention, the database backup data can be sent to the different-machine server for backup, so that the database data backed up in the different-machine server cannot be lost even if the disk of the local server of the database is damaged. In addition, the invention also relates to a block chain techn