問 我(wo)是一名會計師(shi)，現在(zai)(zai)正在(zai)(zai)濟(ji)南一家服裝超市(shi)工作，想了解(jie)一下什么樣的(de)合(he)同是無效的(de)？

答 　根(gen)據《勞(lao)動(dong)(dong)(dong)(dong)(dong)法(fa)(fa)》第18條的規定(ding)，違反法(fa)(fa)律(lv)、行(xing)政法(fa)(fa)規的勞(lao)動(dong)(dong)(dong)(dong)(dong)合(he)同(tong)(tong)(tong)和采取(qu)(qu)欺詐、威(wei)脅等手段訂(ding)立的勞(lao)動(dong)(dong)(dong)(dong)(dong)合(he)同(tong)(tong)(tong)都(dou)是無效(xiao)(xiao)(xiao)勞(lao)動(dong)(dong)(dong)(dong)(dong)合(he)同(tong)(tong)(tong)。勞(lao)動(dong)(dong)(dong)(dong)(dong)合(he)同(tong)(tong)(tong)的無效(xiao)(xiao)(xiao)，由勞(lao)動(dong)(dong)(dong)(dong)(dong)爭議(yi)仲裁委員會或(huo)者人(ren)民法(fa)(fa)院確認，引起無效(xiao)(xiao)(xiao)的原因大體有以下幾種： 　　 1．合(he)同(tong)(tong)(tong)主(zhu)體不(bu)(bu)合(he)格。如受(shou)雇(gu)一(yi)方提供了(le)假(jia)的學歷、學位、專業技術資(zi)格證書，聘用單(dan)位不(bu)(bu)具備(bei)招聘資(zi)格等。 　　 2．合(he)同(tong)(tong)(tong)內容不(bu)(bu)合(he)法(fa)(fa)，即勞(lao)動(dong)(dong)(dong)(dong)(dong)合(he)同(tong)(tong)(tong)有悖法(fa)(fa)律(lv)、法(fa)(fa)規及善(shan)良風俗，或(huo)是損害了(le)國(guo)家(jia)及社會的公共利益(yi)。如約定(ding)制造(zao)冰毒、假(jia)鈔等。內容不(bu)(bu)合(he)法(fa)(fa)的勞(lao)動(dong)(dong)(dong)(dong)(dong)合(he)同(tong)(tong)(tong)不(bu)(bu)受(shou)法(fa)(fa)律(lv)保護。 　　3．意思表(biao)示不(bu)(bu)真實(shi)。勞(lao)動(dong)(dong)(dong)(dong)(dong)合(he)同(tong)(tong)(tong)是雙方合(he)意的產物(wu)，應(ying)該是當事(shi)(shi)人(ren)真實(shi)的意思表(biao)示。采取(qu)(qu)欺詐、威(wei)脅等手段訂(ding)立的勞(lao)動(dong)(dong)(dong)(dong)(dong)合(he)同(tong)(tong)(tong)，違背一(yi)方的真實(shi)意愿，因而是無效(xiao)(xiao)(xiao)的。 　　4．合(he)同(tong)(tong)(tong)形(xing)(xing)式(shi)不(bu)(bu)合(he)法(fa)(fa)。這是指勞(lao)動(dong)(dong)(dong)(dong)(dong)合(he)同(tong)(tong)(tong)沒(mei)有采取(qu)(qu)書面形(xing)(xing)式(shi)、當事(shi)(shi)人(ren)也未(wei)實(shi)際履行(xing)主(zhu)要(yao)義務，或(huo)者依法(fa)(fa)或(huo)應(ying)當事(shi)(shi)人(ren)要(yao)求應(ying)當鑒(jian)證的勞(lao)動(dong)(dong)(dong)(dong)(dong)合(he)同(tong)(tong)(tong)沒(mei)有鑒(jian)證等。在一(yi)般情(qing)況下，只要(yao)當事(shi)(shi)人(ren)采取(qu)(qu)補救措施，使(shi)合(he)同(tong)(tong)(tong)形(xing)(xing)式(shi)上合(he)法(fa)(fa)化后，就可(ke)以認定(ding)合(he)同(tong)(tong)(tong)有效(xiao)(xiao)(xiao)。 勞(lao)動(dong)(dong)(dong)(dong)(dong)合(he)同(tong)(tong)(tong)