A three dimensional stacked multi-chip structure including M chips, a first conductive pillar, and N second conductive pillars is provided. Each chip has a common connection area and a chip-enable area, and includes a substrate and a patterned circuit layer disposed on the substrate. The patterned circuit layer includes an active element, at least one common conductive structure in the common connection area, and N chip-enable conductive structures in the chip-enable area. The first conductive pillar connects the common conductive structure of the M chips. Each second conductive pillar connects one of the N chip-enable conductive structures of the M chips. The chip-conductive areas of the M chips have different conducting states. N is large than 1, M is large than 2, and M is smaller than or equal to 2N.