The purpose of this study were (1) to compare 1st R.O.C. game and 2005 Sydney Olympic game’s weightlifting records. In the meanwhile, we also calculated the failure rate of trail, the difference between snatch and clean & jerk and the percentage of snatch and clean & jerk. (2) to build regression equation among bodyweight, snatch, clean & jerk and relative strength. (3) to analyze the records in recent years of R.O.C. Sydney Olympic game’s weightlifter. The results were as fellow: (1) In all R.O.C. weightlifters, females performed better than males. Passed these females who couldn’t join Sydney Olympic game, other ones who didn’t go to Sydney Olympic game could still medal in Sydney Olympic game. If we compare the failure rate of trail, we could find females’ average was greater than males’ because of females having small difference between snatch and clean & jerk. In the percentage of snatch and clean & jerk, the average percentage of Olympic weightlifters was over 80%, but R.O.C. weightlifters should practice their snatch more. (2) The correlation coefficients among bodyweight, snatch, clean & jerk and relative strength were significant (P<0.1). So these regression equations could be the models while making training goal. (3)After analyzing R.O.C. Sydney Olympic game’s weightlifters’ performance in recent years, we could find Li Fengying performed more sable because of her failure rates of trail 1,2,3 was smallest. In the results of their performance, Wang Shinyuan and Li Fengying’s records and relative strength were increasing steadily, but he didn’t get better record because of his unsuccessful regulation before Olympic Game. Yang Chingyi’s records and relative strength wasn’t increasing steadily before Sydney Olympic game. But he was only 19 years old, he might perform better in a few years. Difference with Wang Shinyuan and Li Fengying, Kuo Yihang regulated successfully before Olympic game, but her age-relative strength curve wasn’t increasing steadily. So she must notice her controlling of weight.