For many people, leisure exercise has become indispensable in life. Ballroom Dancing is one of the popular items among the numerous leisure exercises. It characterizes in high interpersonal interaction; by body-parts manipulation with music, getting physically and mentally pleased, it renders appreciation and emotional revelation. Even more, Ballroom Dancing, including 10 sciences and variable arrangements, offers different experiences; the body actions functioned in muscles would strengthen individual physical energy. Ballroom Dancing, whether in marching directions, dancers' handholding actions, or role playing in different dancing sciences etc. is to be conducted in accordance with original rule. The rule is identical to social regulation, which regulates the behavior standard for the people working on it. Moreover, the prominent attribute of interpersonal interaction in Ballroom Dancing could coordinate something surrounding or even reduce interpersonal tension. Upon the above, we further the study on the features concerned to activities in Ballroom Dancing and conclude the leisure functions of it as following: 1. develope an individual physically and mentally sound. 2. sharpen social skill and expand life experiences. 3. advance comprehension in culture and taste in life. 4. lessen the sense of neglection in urbanized society. 5. self-fulfillment and pursuit for meaningful experiences in life.