The next-generation B-factory experiment Belle II at the upgraded KEKB accelerator, SuperKEKB, will start physics data taking in 2018. It is an asymmetric $e^+e^-$ collider that will operate with $40\times$ the instantaneous luminosity of KEKB/Belle and aims to collect $50\times$ more data in total.
Belle\,II offers the possibility to search for a large variety of Dark Sector particles in the GeV mass range complementary to LHC and direct detection experiments. The searches at Belle II will profit both from the very large dataset, and from specifically designed triggers for the early running of Belle II.