Language is the most important symbolic system for human communication and serves as an important link for strategic cooperation among SCO member states. The development of language connectivity is an objective requirement for ensuring all-round cooperation of the SCO and an inevitable requirement for promoting the development of the SCO to a higher level. This paper introduces the situation of language use in the space of the SCO，summarizes the achievements made in the construction of language interconnection since the establishment of the SCO，and on the basis of this，analyzes the problems existing in the construction of language interconnection and proposes corresponding strategies.