Abstract: Domestic coal mine safety form is severe and it is urgently needed to develop rescue capsule.Rescue capsules provide hedge places for trapped workers.Because of the closed cabin space,it will endanger life if not promptly removed metabolic heat and moisture load from the body.So it must be equipped with air-conditioning system to protect life safety.Combining with the latest home and abroad application status of rescue capsule technology,comparably analyzing air-conditioning mode of split-type air conditioner,liquid-gas phase transition,compressed air and ice storage,etc,the future direction of this technology is prospected.