向量法解空间几何问题,有利于学生克服空间想象力的障碍和空间作图的困难,也有利于丰富学生的思维结构.凭借空间向量解立体几何问题,可把抽象的几何问题转化为代数计算问题,具有较强的规律性和可操作性.平时解题过程中往往提倡利用向量的坐标法求解,淡化了基向量法的解题功能,使得同学们解决一些不易建立直角坐标系的问题时不知所措.为此举几例,以飨读者. The vector method to solve the problem of space geometry will help students to overcome the barriers of space imagination and the difficulty of space mapping, as well as enrich students’ thinking structure. With the help of space vector to solve the problem of solid geometry, abstract geometric problems can be transformed into algebraic calculation Problem, has a strong regularity and maneuverability.Usually usually solve the process of solving the use of vector coordinates method to solve, to dilute the vector function of the problem-solving function, making the students to solve some problems not easy to establish rectangular coordinate system Few know what to do, for example, to readers.