This study aim to obtains the information of the duration and reduction of weight control. Total 89 wrestlers (10 American college’s selected wrestlers who came to Korea in April, 1977; 34 candidates for world Championship from Canada and other 5 countries in 1977; 29 candidates for World Wrestling Championship from Iran and other 3 countries in Afghanistan, August, 1977; and 16 Korean National Team of wrestling in Tae Reung Town) were requested to answer the questionnaire about the duration and volumn-(quantity) of weight controlling framed by the researchers form April, 1977 till April, 1978. The results are as follows; 1) The average duration of weight controlling of Korean National Team is 8 days, and foreign wrestlers 6 days. The owerage reduction of weight controlling of Korean National Team is 8%, and foreign wrestlers 6%. 2) The method of weight controlling are diffe ent; Korean National Team controls by Wrestlers themselves, and foreign wrestlers, especially Bulgariand, by the direction of coaching staffs. 3) Among the studied countries, U.S.A., Bulgaria, Iran, Roumania, Poland and Korea are the gold medal countries and their average duration of weight control is 6 days, and their volume is 6% of their weight.