[Purpose/significance] It has important theoretical significance to think about the development logic and approach of Chinese library, information and archives studies from the dimension of digital humanities. [Method/process] By combing through the differentiation track of the negative dimension of digital humanities, this paper recognizes that it is a manifestation of logoscentrism philosophy. Therefore, from the perspective of deconstructionism philosophy, a positive transformation strategy for the negative dimension of digital humanities is proposed. Furthermore, this paper constructs the development logic of the Chinese library, information and archives studies under the dual dimension of the digital humanities, and based on the above logic, presupposes and deduces the development path of the Chinese library, information and archives studies under the digital humanistic dimension. [Result/conclusion] The results show that the development logic of constructing the subject of Chinese library, information and archives from the positive and negative dual dimensions of digital humanities is more sufficient and complete; Under the adjustment of the factors of "différance" and "dissemination ", three development approaches of the subject of Chinese library, information and archives can be deduced, namely, "multiple dynamic driving", "disciplinary context" and "Chinese context".