The invention relates to an intelligent tendon stretching bed. The bed comprises a controller and a tendon stretching bed, the controller is connected to the tendon stretching bed, the bed is characterized in that all the actions of the tendon stretching bed such as transverse and longitudinal split and shaking of legs, left and right lateral bending of the body, front and back bending of the bodyand lateral bending of the arms are controlled by the controller in a full-automatic intelligent manner, and a memory and share system for user parameters and achievement is arranged in a control system so as to ensure the safety of the user, and to improve the use interest of the user. The tendon stretching bed comprises a main frame, a trunk assembly, gear frame assemblies a leg power motor, aleg bracket, a trunk power motor and a motor bracket, the motor bracket is arranged at the lower side in the main frame, the trunk power motor and the leg power motor are arranged on the motor bracket, one or more gear frame assemblies are arranged on the trunk bracket and the leg bracket, and each gear frame assembly comprises a gear shifter assembly, so that the use of the motor is reduced, thecost is saved, the structure is simplified, and the weight is reduced. The machinery of the invention is novel in structure and easy to process and manufacture, innovatively applies the improved automobile gear shifter structure to an indoor article, ingeniously combines a plurality of mechanical structures such as spur gears, bevel gears and chain wheels, and saves resources and cost.