The utility model relates to a multi-layer particle structure which has the function of clearing lung and contains the extract of Pyrus nivalis. The particle structure comprises: an effective layer which contains the extract of Pyrus; and a protective layer which covers the outer surface of the effective layer.一種具清肺功能之含有青梨(Pyrus nivalis)萃取物的多層微粒結構,該微粒結構由內而外係包含:一功效層,其係含有一青梨萃取物;以及一保護層,其係覆於該功效層的外側表面。