Weightlifting is a sport with a long history. The victory or defeat of the barbell is to raise the weight of the barbell with your hands above your head. Men's weightlifting was included in the official competition in the first Olympic Games. It was not until the Sydney Olympic Games in 2000 that women's weightlifting was included in the official event, although there were women's events in the World Weightlifting Championships as early as 1987. Weightlifters have to complete two weightlifting movements: snatch and clean and jerk.

1920 In the 7th Olympic Games, weightlifting was divided into five heavyweight classes, namely, sub-lightweight (60 kg), lightweight (67.5 kg), middleweight (75 kg), lightweight (82.5 kg) and heavyweight (above 82.5 kg).

1947 At the World Weightlifting Championship, Egypt, a powerful weightlifting country at that time, was adopted and another level-the lightest weight level (below 56 kg) was added.

195 1 was changed to level 7, which raised the weight standard of the original heavyweight to over 90kg and increased the sub-heavyweight (from 82.5kg to 90kg). From then on, it reached 1972. Since the 20th Olympic Games in 1972, the weightlifting competition has increased to nine levels, with the second lightest heavyweight (below 52kg) and extra heavyweight (above 1 10kg) added, and the heavyweight was changed to110.

1976 During the 2nd1Olympic Games, it was increased to 10, with an increase of 100 kg. 1996 Olympic Games, although the level is still 10, but the weight has changed, specifically, 54 kg, 59 kg, 64 kg, 70 kg, 76 kg, 83 kg, 9 1 kg, 99 kg, 108 kg and. 1998, in line with the trend of "Olympic slimming", the International Weightlifting Federation took the initiative to reduce the men's 10 level to eight levels: 56 kg, 62 kg, 69 kg, 77 kg, 85 kg, 94 kg, 105 kg and 105 kg or more. At the same time, women are also adjusted to seven levels: 48 kg, 53 kg, 58 kg, 63 kg, 69 kg, 75 kg and above.