As one of the important symbols of modern mathematics, vector has brought infinite vitality to middle school mathematics. Because vector is a combination of number and shape, it "has dual identities of algebraic form and geometric form, making it the intersection of middle school mathematics knowledge and the medium connecting many contents". Therefore, the introduction of vectors greatly broadens the ideas and methods of solving problems. Make it widely used to study other problems. Below, the author focuses on the examination requirements of "Plane Vector" and puts forward some superficial suggestions for the study of this unit. 1. On this basis, attach importance to the demonstration role of teaching materials. Mathematics teaching material is a "blueprint" for learning basic knowledge of mathematics and forming basic skills. Ability is cultivated and developed in the process of knowledge imparting and learning. In recent years, some problems of plane vector in college entrance examination are the same as or similar to the exercises in textbooks. Although it is only a small problem, it is instructive to our study. 2. Pay attention to the study of mathematical thinking methods. (1) The thinking method of combining numbers and shapes.