Taking the teaching unit of twisted pair and its manufacture as an example, this paper introduces the mode of information teaching based on the traditional practical training teaching, relying on the teaching environment of wisdom classroom and network teaching platform of the college, and setting up three links before, during and after class. By increasing the independent development of simulation game software, micro-class video, in-class learning process data collection, adding after-class group mutual evaluation and other links, the teaching means are enriched, the teaching efficiency is improved and good teaching results are obtained.