Data updating method and device

The invention discloses a data updating method and device, and belongs to the technical field of a computer. The method comprises the following steps: a node receives first updating data sent from an external host and records a receiving moment of the first updating data; according to the receiving moment, a first global version number of the first updating data is generated; according to the first global version number, an updating sequence of the first updating data is determined; and other nodes are notified to execute an updating operation to the first updating data in the updating sequence. A problem of low efficiency in sending the updating data to each slave node through the main node due to low processing capacity of the main node is solved, and an effect on improving the updating efficiency of the updating data is achieved.