点到平面的距离是空间最常见的问题,求解的关键是正确作出图形,确定垂足位置最重要,但在有些条件下,不能直接由点作出垂线,求出垂线长.而必须改变引垂线的位置.本文列举四例,运用点的转移作该面的垂线,求点到面的距离. The distance from the point to the plane is the most common problem in space. The key to solving the problem is to make a correct graph and determine the position of the feet. It is the most important, but under some conditions, it is not possible to make a vertical line directly from the point and determine the vertical line length. It must be changed. The location of the vertical line. This article lists four cases, the use of point transfer for the vertical line of the surface, seeking the distance from the point.