In the main aspects, it can be divided into two categories: defense with the ball (dribbling) and defense without the ball. At present, the defense technology has increased a certain degree of aggression and expanded the control range of defense. The moving speed is greatly improved, the arm movements are fully utilized, and the stealing ability is improved. At the same time, the cooperation consciousness and judgment ability of defense have also been greatly improved.

1. Defender with the ball.

Mainly refers to defending opponents with and without the ball in the frontcourt. In defense, it is mainly to interfere with and block the opponent's shooting, prevent the opponent from breaking through the defense, and prevent the opponent from passing the ball behind. At the same time, according to the attacker's technical characteristics and the distance and position under the basket, different footwork is adopted. Occupy the commanding heights and control the main targets of opponents.

2, backhand.

Stand between the opponent and the ball. The distance of defense varies according to the distance of the opponent from the basket. The opponent is holding the ball on the outside. Generally speaking, it is wise to reach for the ball. The arm on the same side extends obliquely upward, and the other arm extends sideways, so as to move sideways and prevent the opponent from breaking through.

3. Anti-breakthrough.

The defensive breakthrough between the opponent and the basket can be emphasized according to the habit of the opponent's breakthrough and the defense situation of the opponent. In order to defend, we usually use the flat step. Stand with your feet parallel, your arms extended and swing up and down. When the opponent breaks through, he must retreat in the direction of his own breakthrough in time and slide into the gear quickly.

4. Pass prevention.

It is difficult to prevent the opponent from passing the ball in defense, but the key is to prevent the opponent from passing the ball to the basket. In the game, we can analyze the passing direction and point of the ball according to the passer's line of sight and the position of holding the ball. When defending perimeter players, you should gradually move your arms to dig the ball and hit the ball so that it can't pass the ball in time. At the same time, you can use hasty steps to destroy its transmission intention and make it impossible to make an accurate decision.

5. Anti-dribbling athletes.

In one-on-one defense, athletes keep a certain distance, approach at half-court, and sometimes even use "close-fitting defense" to force dribbling on both sides in opposite directions. In general, the defender should keep the opponent's ball between his feet, with his torso facing the ball and his center of gravity lowered. He can stretch his arms to both sides, or stretch one arm forward to interfere and prevent him from changing direction at will. Lateral blockage.