The invention discloses an entity alignment method and device, and the method comprises the steps: carrying out the iterative execution of two screening steps so as to obtain a first entity pair set,wherein the two steps are: carrying out the screening of a target entity pair in two knowledge maps according to a target attribute pair, and carrying out the screening of a new target attribute pairin the two knowledge maps according to the target entity pair. Each target entity pair in the first entity pair set is obtained through the attribute information between different entities, and the attribute information of each entity can more truly and comprehensively represent the entity, so that when the attribute information of the entity is used for aligning the entity, the accuracy of an entity alignment result can be improved.