The invention discloses an adjustable assembly line table bed. The bed comprises a first supporting leg plate, a first sliding rail, a first clamping block, a second supporting leg plate, a first button module, a first buffer pillow, a first upper transmission auxiliary shaft, a bearing bottom plate, a transmission shaft shell, a first supporting plate and a second supporting plate. The first sliding rail is arranged at the upper end of the first supporting leg plate, a hand clamping plate is arranged at the lower end of the first sliding rail, the first clamping block is arranged at one end of the hand clamping plate, the second leg supporting plate is arranged at one end of the first clamping block, the first button module is arranged at the upper end of the second leg supporting plate, the first upper transmission auxiliary shaft is arranged at the upper end of the first button module, the second sliding rail is arranged at one end of the first upper transmission auxiliary shaft, the first buffer pillow is arranged at the lower end of the second sliding rail, the bearing bottom plate is arranged at the lower end of the first buffer pillow, and a module supporting frame is arranged at one end of the bearing bottom plate. The table bed has the advantages of facilitating cleaning of a transmission belt, reducing workload of workers, being high in stability and improving working efficiency.