China-ASEAN Expo exchanges in various fields are becoming more frequent, so the emergence of language consumption and language services have become increasingly prominent. Language services and language consumption issues will have an important impact on the development of the ASEAN Expo, so it is imperative to strengthen the relevant researchs. Based on the background of the ASEAN Expo, this paper aims to explore the main language consumption subjects and the language consumption needs in the construction of the ASEAN Expo, to determine the corresponding language products and services, and to explore the better supply strategies for China - ASEAN Expo.