The invention discloses a halotherapy device. The halotherapy device comprises a drive device and a sample cabin, wherein the sample cabin adopts a box structure and accommodates powdered salt mist materials consisting of NaCl granules with diameter being 500-5000 nm, a discharging air opening penetrating two sides of the box is formed in the sample cabin, two sides of the discharging air opening communicate with an air inlet tube and an air outlet tube respectively, an air inlet of the air inlet tube is connected with a silent fan, the sample cabin is connected rotationally around the axis of the discharging air opening relative to the silent fan, the salt mist materials can rotate with the sample cabin and scatter at the discharging air opening, and the drive device is connected with the sample cabin and drives the sample cabin to rotate. According to the halotherapy device, the salt mist materials processed in advance are used for simulating natural salt mine microclimate, the diameter of the NaCl granules can be precisely controlled, produced salt mist meets the treatment requirement, and the treatment effect is improved; a high-speed motor and a gas compressor are not needed, and the silent fan is used, so that noise is greatly reduced.