We propose a new electroweakly interacting spin-1 dark matter(DM) model. In our model, DM pairs annihilate into SM particles through the electroweak interaction efficiently. Therefore, we can explain the correct DM energy density via the freeze-out mechanism while evading the current experimental bounds. In this talk, we present how we constructed this spin-1 DM model. We also show the parameter region where we obtain the correct DM energy density and discuss the future detectability of this model. This talk is based on JHEP 07 (2020) 136 [arXiv:2004.00884].