In recent years, basketball becomes one of domestic popular sports. All levels of schools establish the basketball school team in abundance and held many games, so the technical standards of the defense relatively has also promoted, and the defensive technology no longer was stereotypical, changeless. The development towards the aggressive direction now and it adopts the strategic and the oppressive defense tactics, and enhances the defensive initiative and destructiveness. The rule's article revises unceasingly for caters to the competition intensity and then causes the games to compete fairly and reasonably. But in multitudinous article, no matter the coach or the player all does not understand the article's content in detail. However, the rule's article actually is the important basis to distinguish the competition's victory and loss. The team should use the rule's article codes to devise suitable defense, adopt the aggressive and oppressive defense tactics to cause opposite party to make an error to grasp the initiative right which wins.