The mobile phone has been the necessity in our daily life,”please call me when you have something”has been the slogan among middle school students.more and more parents and teachers worries about the problems which the mobile phone ringing from time to time during the class,and unhealthy short message ,as well as the comparison psychological .for me ,I suggest not the middle school students bring mobile phone.the reasons as follows:first,chating through short message can distract the students attention to the study.second,the unhealthy short message can pollute their soup.third,form the unsafty factor,fourth,it is bad for one’s healthy.fifth,it may help the atmoshpere of wasting and blind comparision.sixth,it give convinence to cheating in examination.at first ,why our parents buy mobile phone for us,the purpose of them absolutely it is convinence for us keep in touch with family,however,the advantages of mobile phone is beyond the parents imagination.at many times,we enlarge our phone contracts into more classmates and friends.the students who owned mobile phone starting love chatting ,sending short messages,play mobile phone games,they cannot control themselves to play them.some students playing games and sending short messages during the class,therefore,it can easily influence classroom discipline and their study.Second,now the middle students are in a stage of youth rebellious,use mobile phone not only strengnth the communication,but also increase the love oppptunity,some of the students mutual-forward the unhealthy jokes and words,make them have a blush,and infulence their body and mental healthy,even some places use mobile phone to play joke with others.