2012年第1期的《党史研究与教学》,刊载了张建军《新发现的李大钊一篇讲演稿及其解读》(以下简作“张文”),对新发现的李大钊讲演稿《茶贸易与蒙藏之关系》(署名李守常,以下简作《茶贸易》)做了介绍。近来,笔者细读李大钊的演讲文本及张文的介绍,对该演讲的几个关键问题,如演讲场合、演讲时间及其有关内容等,有了一些新的思考和探究。写成此文,以就教于学术界同仁。一、该演讲的场合应为中国公学商科大学据张文介绍,《盛京时报》的发表稿中,提及《茶贸易》的演讲场合是“中公商大”。对此,张文介绍说:“‘中公商大’似应为当时 In 2012, the first issue of ”History of the Party History and Teaching“, published Zhang Jianjun ”a newly discovered Li Dazhao a lecture and interpretation“ (the following short form ”Zhang Wen “), the newly discovered Li Dazhao lecture ” Tea Trade and the Relationship between Mongolia and Tibet “(signed by Shusong Chang, hereinafter referred to as” Tea Trade “) was introduced. Recently, I carefully read the speech of Li Dazhao and Zhang Wen’s introduction, and gave some new thoughts and inquiries on a few key issues of the speech, such as the occasion of speech, the time of lecture and the related contents. Write this article to teach in the academic colleagues. First, the speech should be occasions for China University of Business and Commerce University According to Zhang Wen introduction, ”Shengjing Times“ published a manuscript, referring to the ”tea trade“ speech occasion is ”Zhong Gong Shang Da “. In this regard, Zhang Wen said: ”’in the business big’ should be at that time