Abstract: Through understanding the reading media and research situation,the case analysis of the Jiangxi Provincial Library's"Lan Lan Sister's Story"reading promotion,found that the theme of its activities is unclear,and the promotion location lacks precision；New media use ability is poor,promotion channel is single；Librarians have few opportunities for exchange and learning,and lack of professionalism.Finally,the paper puts forward the use of big data technology to improve service precision.Change the thinking and increase the reading experience platform；Pay attention to propaganda and build a multi-channel interactive platform；Pay attention to talents and improve the reading and promotion strategies of librarians'multimedia knowledge literacy.

Key words: multimedia；Jiangxi provincial library；reading promotion；children and adolescents