Embodiments of the invention disclose a data page loading method used for improving data processing efficiency of a calculation node after restart. The data page loading method disclosed in the embodiments comprises the steps as follows: when any one calculation node is restarted, the calculation node receives a first identification sent from a coordination node; the first identification comprises state information for indicating whether the data pages in a first data page set are changed or not when the calculation node is in a closed state, wherein the data pages of the first data page set have the same identity identification with the data pages in a second data page set of the calculation node, and the state information is recorded by the coordination node; and when the state information indicates that the number of the changed data pages does not exceed a threshold value, the calculation node reserves the second data page set stored in the closed state in restart of the calculation node.