By combining1 the conceptual framework of digital literacy and the needs of digital literacy in the epidemic, the author clarifies the content and significance of digital literacy education in the post-epidemic era. Through the investigation of the literacy practice of domestic public and university libraries, this paper dissects the deficiencies of the current digital literacy education, and puts forward suggestions on the innovation of the digital literacy cultivation mode of libraries in the post-epidemic era from three aspects: developing the content, enriching the practice forms and formulating the emergency education mode of digital literacy.