1. Freestyle swimming: usually swimming in the crawling posture, which is a swimming posture in which the arms alternately stroke and the legs alternately kick 6 times.

Crawl swimming has a reasonable structure, low resistance, uniform and fast speed. It is the most labor-saving and fastest swimming posture, so it is commonly used in competitions.

2. Breaststroke: It is a swimming posture that imitates the swimming action of a frog. The human body lies prone on the water, with both arms symmetrically placed in front of the chest and straight arms bent and stroked downwards, and the legs flexed and extended symmetrically to squeeze the water, like a frog. Swim. When swimming breaststroke, swimmers can easily see whether there are obstacles in front of them to avoid hitting them. Breaststroke is labor-saving, easy to last, and has great practical value.

3. Butterfly stroke: Butterfly stroke technology evolved based on breaststroke technical movements. In butterfly swimming, the body lies prone in the water and relies on the powerful strokes of the arms and the wavy kicking action of the legs to propel the body forward.

4. Backstroke: Also known as backstroke, it is a swimming posture in which the human body lies on its back in the water. During the backstroke swimming process, the head is exposed to the water, making it easier to breathe; lying on the water saves effort.