The invention discloses a torsional spring damping hidden type automatic foldable double bed, and relates to a hidden type automatic foldable double bed, which solves the problem that the double bed placed in a narrow room occupies large indoor space, and the hidden type automatic foldable double bed is great in weight, so that the volume and power consumption of a drive motor are great and the manufacturing cost is increased. Three bed body supports are fixedly connected with a wall body, one end of the bed body is rotatably connected with a headboard I which is rotatably connected with a headboard II, the headboard II is rotatably connected with each bed body support, each bed body support is rotatably connected with one end of the bed body, each torsional spring is fixedly connected with one bed body support and the bed body, a motor is connected with a worm gear reducer which is fixedly connected with a gear I, a gear II is fixedly connected with the bed body, the gear II is engaged with the gear I, a manual rocker arm is fixedly connected with the gear I, a bed folding cabin is placed close to the wall body, and the bed body folded is placed in the bed folding cabin. The double bed provided by the invention is used for sleep and rest.