A scapulae position measurement device includes a main body extending in the vertical direction, configured to be positioned to run along the spinal column, having a vertical scale, and a moveable arm, extending in a horizontal direction on the right or left side of the main body, having a horizontal scale. The scapulae position measurement device is capable of measuring position changes of the horizontal direction (X axis) and vertical direction (Y axis) of the scapulae, and capable of displaying the tension/relax state of the surrounding muscles of the scapulae with an objective numerical value.