A chip packaging method includes followings steps. A plurality of first chips are disposed on a carrier, wherein each of the first chips has a first active surface, and a plurality of first conductive pillars are disposed on the first active surface. A second active surface of a second chip is electrically connected to the first active surfaces of the first chips through a plurality of second conductive pillars. An encapsulated material is formed, wherein the encapsulated material covers the plurality of first chips, the plurality of first conductive pillars, the second chip and the plurality of second conductive pillars. The encapsulated material is partially removed to expose each of the plurality of first conductive pillars. A redistribution structure is formed on the encapsulated material, wherein the redistribution structure connects with the first conductive pillars.