Portable electronic apparatus and optical sensing packaging object thereof

A portable electronic apparatus including a casing, a cover, and an optical sensing packaging object is disclosed. The cover having a first transparent region and a second transparent region is disposed on the casing. The optical sensing packaging object is disposed in the casing. The optical sensing packaging object includes a first chip, a second chip, and a blocking unit. The first chip provides a light. The second chip has a first sensing region providing an ambient light sensing signal and a second sensing region providing a proximity sensing signal. The second sensing region is located between the first chip and the first sensing region. The blocking unit is disposed between the first chip and the second chip. The first sensing region is located under the first transparent region. The first chip and the second sensing region are located under the second transparent region.