沪案交涉是由执政府担当的,但执政府为延长其政治生命,只知利用五卅运动中的“民气”以对内,并没有真正谋划沪案交涉,导致交涉主张不统一,交涉策略不明朗,交涉步骤不一致;同时,各外交官员在开展外交时也进行“内争”,相互推诿卸责,导致沪案交涉延宕;江苏地方官员和各派军阀也以外交之名,与中央一起争夺上海地盘;此外,沪案发生时,上海无军政大员负责的现状也影响到了沪案交涉的开局。这些才是沪案交涉无功而终的主要原因。 Shanghai case negotiation is undertaken by the ruling government. However, in order to prolong its political life, the ruling government only learned that it is using the “norm” in the “Five Wights” campaign and does not really plan the negotiation of the case in Shanghai, resulting in the unification of negotiation opinions and the negotiation tactics Uncertainties and inconsistent steps in the negotiations. At the same time, diplomats also carried out “civil strife” during their diplomacy and pushed each other to shirk their responsibilities. As a result, the negotiations in the case of Shanghai were delayed. Local officials and factional warlords in Jiangsu also contested with the Central Government in the name of diplomacy Shanghai site; In addition, the Shanghai case, the absence of military and political officials in Shanghai is also responsible for the status quo affected the case of Shanghai negotiations started. These are the main reasons for the unsuccessful negotiations in Shanghai.