在很多学生看来,书写相对于解题来说感觉像是一件很简单的事情,没能够引起足够的重视.笔者有幸参与2012年江苏省高考数学立体几何题的阅卷工作.在阅卷过程中,发现今年的立体几何题本身难度不大,但学生的得分并不理想.究其原因,书写对学生此题得分的影响是非常大的.本文将结合此题的解法、学生易犯的错误,谈谈书写对学生成绩的影响及由此得到的教学启示,以供参考. In many students’ view, writing is a simple matter in relation to problem solving, and it did not attract enough attention. I was fortunate enough to participate in the marking of the three-dimensional geometry of entrance exams in Jiangsu Province in 2012. During the marking process , Found that this year’s three-dimensional geometry problem itself is not difficult, but the student’s score is not ideal.Research reasons, writing on the students score of the question is very large.This article will be combined with the solution of this problem, students make mistakes , To talk about the impact of writing on student performance and the resulting teaching enlightenment for reference.