A shoulder brace is provided which is fitted to a patient having an externally injured shoulder in the initial stage of treatment and which enables the patient to make motions in directions suitable for early rehabilitation exercises for the injured shoulder. The shoulder brace is fitted to the patient having the externally injured shoulder in a physiological reference position where the elbow joint of the patient is flexed by an angle of 90° in the frontward direction and the shoulder is internally rotated by an angle of 30°. The shoulder brace includes a first layer and a second layer. The first layer includes at least: shoulder attachment portions 11a and 11b attached to both shoulders respectively, each having a predetermined width and being arranged in the frontward and backward directions； and a back-side linking portion 13 linking back-end parts of the right and left shoulder attachment portions 11a and 11b. The second layer includes a ringed sling 21 having a predetermined width. The sling 21: runs below from the front end of a shoulder portion 21a, the shoulder portion 21a being placed in the frontward and backward directions on the shoulder attachment portion 11a of the first layer, up to the ulnar side of the forearm adjacent to the elbow； runs from the ulnar side of the forearm across the lower-surface side of the forearm up to the radial side of the forearm； runs from the radial side of the forearm across the front of the upper arm； and runs through the armpit up to the back end of the shoulder portion 21a. The patient fitted with the shoulder brace is able to take a simple-pendulum exercise in the frontward and backward directions while retaining the forearm at the shoulder internal-rotation angle of the physiological reference position.
