公司上市大致要經歷以下步驟：

　　1、 擬寫公司上市方案及可行性報告。

　　聘(pin)請律(lv)師(shi)介(jie)入為公(gong)(gong)司(si)(si)完善有(you)關(guan)公(gong)(gong)司(si)(si)管理的(de)法(fa)律(lv)文件，按(an)公(gong)(gong)司(si)(si)法(fa)的(de)規定完善公(gong)(gong)司(si)(si)的(de)組(zu)織機構，并(bing)擬寫、整理有(you)關(guan)公(gong)(gong)司(si)(si)上市(shi)的(de)法(fa)律(lv)文書，如(ru)有(you)涉訴案(an)件的(de)，律(lv)師(shi)代理完成有(you)關(guan)訴訟工作。

　　聘請注(zhu)冊會計師介(jie)入完成有(you)關公司上市的(de)審(shen)計工作，并完善(shan)財務報表和原(yuan)始憑證。

　　聘請(qing)券商進行上市(shi)輔導、推薦。

　　律(lv)(lv)師出具法(fa)律(lv)(lv)意見及(ji)有關(guan)上市法(fa)律(lv)(lv)文件(jian)報證監會(hui)審(shen)批(pi)。

　　6、審批(pi)。7、上市。

　　注冊會計師對(dui)上市公司上市后(hou)三年財務(wu)審(shen)計。

　　附、公司上市所需要的時間

　　從擬寫(xie)可行性報(bao)告準備(bei)上市(shi)時起(qi)，到通過審(shen)核上市(shi)，大(da)約(yue)需18個(ge)月。

　　附、公司上市的支出中介費用

　　1、律師費：20萬以上。

　　注冊會計師費：60萬以上(shang)

　　3、券商(shang)中(zhong)介費：150-200萬以上

　　股(gu)(gu)(gu)份有限公(gong)(gong)司(si)具(ju)備(bei)上(shang)(shang)(shang)市(shi)(shi)(shi)(shi)(shi)(shi)條(tiao)件(jian)(jian)(jian)(jian)后(hou),只是具(ju)備(bei)了申(shen)請上(shang)(shang)(shang)市(shi)(shi)(shi)(shi)(shi)(shi)的(de)資(zi)格,而(er)要真正成(cheng)為上(shang)(shang)(shang)市(shi)(shi)(shi)(shi)(shi)(shi)公(gong)(gong)司(si)還必須依照(zhao)(zhao)法(fa)(fa)定(ding)(ding)程序(xu)提出申(shen)請,經過審(shen)查批(pi)(pi)準(zhun)(zhun)(zhun)(zhun)(zhun)(zhun)方可上(shang)(shang)(shang)市(shi)(shi)(shi)(shi)(shi)(shi)。我國《公(gong)(gong)司(si)法(fa)(fa)》規(gui)(gui)定(ding)(ding)的(de)股(gu)(gu)(gu)份有限公(gong)(gong)司(si)上(shang)(shang)(shang)市(shi)(shi)(shi)(shi)(shi)(shi)程序(xu)如下：股(gu)(gu)(gu)份有限公(gong)(gong)司(si)申(shen)請其(qi)股(gu)(gu)(gu)票上(shang)(shang)(shang)市(shi)(shi)(shi)(shi)(shi)(shi)交(jiao)(jiao)易(yi),應當報經國務(wu)(wu)院(yuan)(yuan)或(huo)(huo)者國務(wu)(wu)院(yuan)(yuan)授權證(zheng)(zheng)券管理(li)部門(men)批(pi)(pi)準(zhun)(zhun)(zhun)(zhun)(zhun)(zhun),依照(zhao)(zhao)有關法(fa)(fa)律、行政(zheng)法(fa)(fa)規(gui)(gui)的(de)規(gui)(gui)定(ding)(ding)報送有關文件(jian)(jian)(jian)(jian)。國務(wu)(wu)院(yuan)(yuan)或(huo)(huo)者國務(wu)(wu)院(yuan)(yuan)授權證(zheng)(zheng)券管理(li)部門(men)對符合本法(fa)(fa)規(gui)(gui)定(ding)(ding)條(tiao)件(jian)(jian)(jian)(jian)的(de)股(gu)(gu)(gu)票上(shang)(shang)(shang)市(shi)(shi)(shi)(shi)(shi)(shi)交(jiao)(jiao)易(yi)申(shen)請,予以批(pi)(pi)準(zhun)(zhun)(zhun)(zhun)(zhun)(zhun);對不符和(he)本法(fa)(fa)規(gui)(gui)定(ding)(ding)條(tiao)件(jian)(jian)(jian)(jian)的(de),不予批(pi)(pi)準(zhun)(zhun)(zhun)(zhun)(zhun)(zhun)。股(gu)(gu)(gu)票上(shang)(shang)(shang)市(shi)(shi)(shi)(shi)(shi)(shi)交(jiao)(jiao)易(yi)申(shen)請經批(pi)(pi)準(zhun)(zhun)(zhun)(zhun)(zhun)(zhun)后(hou),被(bei)批(pi)(pi)準(zhun)(zhun)(zhun)(zhun)(zhun)(zhun)的(de)上(shang)(shang)(shang)市(shi)(shi)(shi)(shi)(shi)(shi)公(gong)(gong)司(si)必須公(gong)(gong)告其(qi)股(gu)(gu)(gu)票上(shang)(shang)(shang)市(shi)(shi)(shi)(shi)(shi)(shi)報告,并將其(qi)申(shen)請文件(jian)(jian)(jian)(jian)存放在指定(ding)(ding)的(de)地點供公(gong)(gong)眾(zhong)查閱(yue)。經批(pi)(pi)準(zhun)(zhun)(zhun)(zhun)(zhun)(zhun)的(de)上(shang)(shang)(shang)市(shi)(shi)(shi)(shi)(shi)(shi)公(gong)(gong)司(si)的(de)股(gu)(gu)(gu)份,依照(zhao)(zhao)有關法(fa)(fa)律、行政(zheng)法(fa)(fa)規(gui)(gui)上(shang)(shang)(shang)市(shi)(shi)(shi)(shi)(shi)(shi)交(jiao)(jiao)易(yi)。經國務(wu)(wu)院(yuan)(yuan)證(zheng)(zheng)券管理(li)部門(men)批(pi)(pi)準(zhun)(zhun)(zhun)(zhun)(zhun)(zhun),公(gong)(gong)司(si)股(gu)(gu)(gu)票可以到境外上(shang)(shang)(shang)市(shi)(shi)(shi)(shi)(shi)(shi),具(ju)體辦法(fa)(fa)由國務(wu)(wu)院(yuan)(yuan)作出特(te)別規(gui)(gui)定(ding)(ding)。