As　a　curriculum　for　television　principle,　it＇s　better　to　show　the　dynamic　graphs　of　the　television＇s　signal　at　every　step,　but　the　existent　technique　can＇t　reach　the　request,　as　the　MS-PowerPoint　can＇t　reach　the　dynamic　purpose　and　the　experiments　are　limited　by　the　physical　conditions.　Along,with　the　simulation＇s　prevalence,　based　on　the　television＇s　principles,　it　is　put　forward　that　the　model　of　television　system　with　MATLAB/SIMULINK　is　constructed　to　simulate　the　graphs　of　the　television＇s　signal　at　every　step.　The　model＇s　simulation　results　indicate　that　the　model　constructed　with　MATLAB/SIMULINK　can　simulate　the　functions　and　performances　of　television　accurately.