The invention provides an in-vitro muscle stretching electrical stimulation muscular tension test experimental table. The table comprises a rack, a mobile table, a linear motion unit, an electrode and a program-controlled electrical stimulation instrument. The rack is provided with the linear motion unit, a displacement sensor and the electrode, the displacement sensor is arranged on one side of the linear motion unit which is connected with a servo motor, the servo motor is connected with a motion controller, the mobile table is arranged on the linear motion unit, and opposite muscle clamps are arranged on the rack and the mobile table, one of the muscle clamps is provided with a force sensor, and the electrode is connected with the program-controlled electrical stimulation instrument. By means of the experimental table, experimental muscle bundles can be controlled by a computer to achieve motion in a specific rule, the position of the mobile table can be manually adjusted, so that a changing curve that the force, the stretching length and other parameters of muscular tension are changed along with time when muscle is under different stretching states can be achieved, and an experimental means is provided for researching nerve muscles.