This paper chooses the single information contents services industrial chain as the research ob-ject, and discusses the fundamental principles of the harmonization of interests in the chain in perspectiveof the in-chain subjects. Besides, the paper analyzes the means of achieving the harmonization of inter-ests in the information contents services industrial chain from three aspects, i.e. the economic harmoniza-tion dominated by internal subjects, the administrative harmonization organized by external subjects, andthe legislative harmonization.