《网络技术应用》是高中信息技术课程中的选修课之一,其内容强调技术取向,有一定的难度和深度。课程中网络概念的知识使学生难以理解,教师同样难以教学。本文探讨了利用思科公司的PacketTracer模拟软件为高中计算机网络课程教学带来的巨大变化,在教学中将抽象的计算机网络概念形象化,将枯燥的网络原理具体化,激发了学生的学习兴趣,在实际使用中取得了很好的效果。 “Network Technology Application” is one of the elective courses in the high school information technology curriculum. Its content emphasizes the technical orientation and has certain difficulty and depth. The knowledge of the network concept in the course makes it difficult for students to understand and teachers are also difficult to teach. This article explores the use of Cisco’s PacketTracer simulation software to bring great changes to the high school computer network curriculum teaching, in the teaching of the concept of abstract computer network visualization, the boring network of the principles of concrete, inspired students interest in learning. Actual use has achieved very good results.