The invention relates to a novel emergency shelter berth ladder for a dormitory building when on fire. An ordinary berth ladder is changed to a novel ladder applicable to the emergency escape according to the current situation, not only is the application function of the ladder for climbing not influenced, but also the berth ladder can be used for escape, dual purpose can be realized, and manpowerand worry can be saved; a hook on an end part of a bed can be hung on a reliable hooking apparatus which is arranged outside a window and a balcony and can bear a large force, so that an escape channel is wider; a plurality of ladders can be connected together, so that a length of the ladder can be greatly increased, the escape range of a survivor can be enlarged, the rescuing time can be prolonged, and the survival probability of a victim can be improved; and if people on multiple floors escape at the same time, people on high floors can escape to the lower floor by virtue of the ladder hungon the higher floor and then can escape by virtue of the ladder hung on the lower floor so as to directly reach the ground.