The research was done to understand the situation of the sports injuries which cause by contortion practice and happen in the Acrobatic department of the National Taiwan College Of Performing Arts right now. The research was done by questionnaire method, survey the junior high, senior high and the college students of the National Taiwan College Of Performing Arts and the members of the Taiwan Acrobatic Troupe. Many questionnaires were conducted,170 questionnaires have been sent out to subjects,165 effective questionnaires have been sent back and the rate of effective respond is 97%. According to the descriptive statistics and frequency distribution etc. methods, weseparated the data into four parts: the basic information, injury-situation, treatment and therapy of their sport injuries, then presented as percentage. As the result: First, the most easily body parts to get hurt during the contortion practice would be the "waist". The rate is so high that up to 47.9%. Besides, the "ankles" are the second highest, about 10.3% and the third highest are "shoulder and knees", about 6.7%. Second, the typical type of injury that happen during the contortion practice is "the strain (muscle, tendon or ligament laceration)",the rate up to 60%. The second highest is the "sprain", about 20.6%. And the third highest is the "wound(bruise or cut)" about 10.3%. Third, the main cause of these injuries during the contortion practice is the incorrect postures, it is responsible for 48.5% of traumas. The accident occupied 10.3%, and the problem that didn't warm up enough before practice takes about 9.1%. Fourth, most of the damages happened "in class", the rate up to 50.3%, and the second highest is "practice-time", the rate also up to 46.1%. Fifth, most of the injuries during the contortion practice happened indoor, the rate up to 86.7%, and the rate outdoor only about 13.3%. Sixth, ice-patched is the most common way to treat these kinds of injuries, the rate up to 63.6%, the second highest is massage, about 23.0%, seeking medical help is the last one, about 7.3%.