A data reconstruction method, comprising: obtaining (S101) attribute information for a plurality of to-be-reconstructed video data items; wherein the attribute information of any of the to-be-reconstructed video data items is information recorded before the to-be-reconstructed video data item is lost; wherein, the attribute information comprises a data type, a playback frequency and a set state, wherein the data type comprises an alarm type and an intelligent type, and the set state comprises a lock state; and determining (S102), according to the attribute information for the plurality of to-be-reconstructed video data items, a reconstruction order for the plurality of to-be-reconstructed video data items in a preset target sorting manner; wherein, the target sorting manner relates to the attribute information, and in the target sorting manner, a data item of greater importance has a higher priority in reconstruction, a first batch of data items are to-be-reconstructed video data items having a playback frequency meeting a preset condition, a second batch of data items are to-be-reconstructed video data items in the lock state, a third batch of data items are to-be-reconstructed video data items of the intelligent type, a forth batch of data items are to-be-reconstructed video data items of the alarm type, and a fifth batch of data items are to-be-reconstructed video data items other than the first batch of to-be-reconstructed video data items, the second batch of to-be-reconstructed video data items, the third batch of to-be-reconstructed video data items and the fourth batch of to-be-reconstructed video data items. obtaining (S101) attribute information for a plurality of to-be-reconstructed video data items; wherein the attribute information of any of the to-be-reconstructed video data items is information recorded before the to-be-reconstructed video data item is lost; wherein, the attribute information comprises a data type, a playback frequency and a set state, wherein the data type comprises an alarm type and an intelligent type, and the set state comprises a lock state; and determining (S102), according to the attribute information for the plurality of to-be-reconstructed video data items, a reconstruction order for the plurality of to-be-reconstructed video data items in a preset target sorting manner; wherein, the target sorting manner relates to the attribute information, and in the target sorting manner, a data item of greater importance has a higher priority in reconstruction, a first batch of data items are to-be-reconstructed video data items having a playback frequency meeting a preset condition, a second batch of data items are to-be-reconstructed video data items in the lock state, a third batch of data items are to-be-reconstructed video data items of the intelligent type, a forth batch of data items are to-be-reconstructed video data items of the alarm type, and a fifth batch of data items are to-be-reconstructed video data items other than the first batch of to-be-reconstructed video data items, the second batch of to-be-reconstructed video data items, the third batch of to-be-reconstructed video data items and the fourth batch of to-be-reconstructed video data items. <EOS>