此文旨在对以往论述不足的共产国际、苏俄对孙中山、陈炯明关系的几个问题再作新的探讨。主要体现在：在孙、陈所持信仰及其歧异、如何统一中国、二者究竟依靠何种力量和代表谁等问题上，共产国际、苏俄的观察和评论有一段过程，其评论前后不一致，而且共产国际、苏俄代表内部亦有歧异，直到陈炯明发动兵变反对孙中山后，才渐趋一致。但其观察和评论的正确性，仍存尚待继续搜集资料深入研究之处。 This essay aims to make a new discussion on several issues that were not discussed in the past, such as the Comintern and the Soviet Union on the relations between Sun Yat-sen and Chen Jiongming. Mainly reflected in: Sun, Chen held beliefs and differences, how to unify China, the two depend on what kind of strength and who to represent and so on, the Communist International, Soviet Russia’s observation and comment on a period of process, the inconsistency before and after the comment, Moreover, there were also differences within the Comintern and the Soviet Union and Russia’s internal representatives. It was only after Chen Jiongming initiated mutiny against Sun Yat-sen that it became more and more consistent. However, the correctness of observations and comments still remains to be found for further study.