Abstract: Through the analysis of the current teaching situation of information theory,we find out the existing problems in the course teaching.We carry out the teaching reoform from the following aspeets;adjwst classroom teachiy conterrts,in troduce teaching mode of problem based learning(PBL),establish teaching pletform of simulation experiment,and entive-process evalution.The practice shows that teaching refrms improve the teaching quality and students cultivestion qualitoy,and promotes the cultivation of applied and innovative abilities.