The invention discloses a storey height adjustable house structure with variable-position X-shaped steel supports. The storey height adjustable house structure comprises spring concave connecting pieces, convex connecting pieces, fixed pulleys, steel wire ropes, a motor, the X-shaped steel supports, variable-position pulleys, clamping gears, rotating shafts,
metal clamping keys, outer walls, a first-layer floor, a second-layer floor, a door,
stairs and windows. The motor rotates
clockwise to lift the steel wire ropes through the pulleys to enable the rotating shafts to rotate, the rotating shafts are fixedly connected with the clamping gears, the
metal clamping keys are connected with the rotating shafts through steel wires, the rotating shafts rotate to drive the
metal clamping keys to contract, the clamping gears start to rotate, the variable-position pulleys start to roll on rails through rotation of the clamping gears, the X-shaped steel supports contract through movement of the variable-position pulleys, and therefore the first-layer floor ascends. The first-layer floor can descend slowly to recover the original state, a house is of a normal second-layer building structure, and the requirement of people for normal rest and life is met.