A chip package structure is provided. The chip package structure includes a substrate. The chip package structure includes a chip over the substrate. The chip package structure includes a first bump and a first dummy bump between the chip and the substrate. The first bump is electrically connected between the chip and the substrate, the first dummy bump is electrically insulated from the substrate, the first dummy bump is between the first bump and a corner of the chip, and the first dummy bump is wider than the first bump.