It is well known to scientists that 95% of the universe is composed of unknown dark energy and dark matter. Among them, dark matter, which accounts for 27% of the universe, has been confirmed by astronomical observations, but it has not yet been observed yet by direct observation. Among the candidates for dark matter, WIMP (a weakly interacting massive particle) is one of the most stringent candidates, and has been searching competitively in underground laboratories around the world. In Korea, the COSINE collaboration is carrying out the world-class dark matter search experiment by establishing the COSINE-100 experiment in the Yangyang underground laboratory with the joint research team of USA, UK, Brazil and Indonesia. In Korea, we plan to build a new underground laboratory in Jeongseon county by 2020 to continue searching for dark matter. In this presentation, I will briefly introduce the dark matter and show the ongoing researches on deep underground laboratories in the world and show the efforts and accomplishments in Korea.