[Purpose/significance] Investigating and analyzing the construction of "the belt and road initiative" thematic database to provide reference for the construction of "the belt and road initiative" multilingual and shared database. [Method/process] Through literature and network research, more than 30 kinds of databases were selected as analysis objects, and systematic analysis was carried out from the aspects of resource organization systems, resource types and content, database construction methods, and multilingual processing problems. The construction of database is characterized by different ways of information organization, diverse types and contents of resources, different ways of cooperative construction, and single page language. [Result/conclusion] The paper proposes adopting multi-dimensional resource organization methods, in-depth processing of resource content, strengthening research on cooperation mechanisms at home and abroad, and attaching great importance on the collection of small-language resources and cross-lingual retrieval research.

[Purpose/significance] It is urgent to build the economic management database of the countries along "the Belt and Road" to provide services for the economic development of the countries along "the Belt and Road" and promote "the Belt and Road" initiative. [Method/process] 33 related databases on "the Belt and Road" were selected as the survey object, and the network survey method was used to obtain information on their resource field, resource sources, resource types, languages and participating countries.Then,we analyzed it. [Result/conclusion] This paper has found that the deficiencies in the current construction process of related databases on "the Belt and Road" are mainly due to: standards on resource field are different, resource source channels are relatively single, resources types are not rich enough, the number of supporting multilingual databases is small, and the countries along "the Belt and Road" seldom participate in the construction of thematic database resources. From the five dimensions of resource field, resource sources, resource types, languages and countries, the resource construction strategy of the economic management database of the countries along "the Belt and Road" is discussed.

[Purpose/significance] To realize the effective use of "the Belt and Road" multilingual shared database resources, the problem of cross-language retrieval should be solved. Based on the survey results of "the Belt and Road" database retrieval function, "the Belt and Road" multilingual shared database’s retrieval function demand is analyzed. From the perspective of researching on the cross-language retrieval platform, reference for cross-language retrieval function design and development of "the Belt and Road" multilingual shared database can be provided. [Method/process] Through literature and network survey, 11 typical cross-language retrieval platforms at home and abroad were selected. Analysis was carried out from five aspects: cross-language retrieval method, cross-language translation implementation method, retrieval function, retrieval results, interface and retrieval support language. Then concluded their implementation ways. [Result/conclusion] Based on this, strategies are proposed for the cross-language retrieval function design and development of "the Belt and Road" multilingual shared database: adopting question-document translation method based on neural machine translation, implementing multiple retrieval functions, visualization technology used to present retrieval results, providing multi-language interface and resources.