Recently so many dark matter direct search expriments have been conducted. Among them the detectors with noble liquids, especially LXe detectors, gave the best limit on the dark matter-nucleus cross section so far. In this seminar, first I would like to review the principle of direct searches and noble liquid technologies. Then, I will explain the recent results of XMASS, the unique single phase LXe scintillator in Kamioka. I will also mention the future projects of noble liquid detectors.