Crawl swimming this position is well-structured, low resistance, even speed, fast, is the most energy-saving, fastest one of the swimming position, so in the competition is more commonly used.

2. Breaststroke: it is a kind of swimming posture imitating the swimming action of frogs. The human body lies prone on the surface of the water, the two arms in front of the chest symmetrically straight arm side downward flexion paddling, and the two legs symmetrically flexion and extension of stirrups and clamping the water, like a frog swimming. When breaststroke, swimmers can easily observe whether there are obstacles in front of them to avoid hitting the obstacles. Breaststroke is more energy-saving, easy to last, and of great practical value.

3. Butterfly Stroke: Butterfly Stroke is evolved on the basis of breaststroke. When butterfly swimming, the body lies prone in the water, relying on the powerful stroke of the two arms and the wavy water-beating action of the legs to push the body forward.

4. Backstroke: also known as backstroke, is a kind of swimming position in which the body lies on its back in the water. Backstroke characters in the swimming process, the head exposed to the water, breathing is convenient; lying on the water, more energy-saving.