Abstract:Against the backdrop of Big Data era, the information service provided by sci-tech journals is no longer able to accommodate the knowledge requirement of science-technology innovation, which calls on sci-tech journals to provide knowledge service rather than information service. As the information capabilities of sci-tech journal editors plays an important role in knowledge service, it has become indispensable for editors to improve their information capabilities from 3 aspects: They should be based on information analysis and management capabilities, be protected by information acquisition and retrieval capabilities, and improve information mining and organization, thereby improve the knowledge service capabilities of themselves and journals So that the knowledge service ability of the journal can be further enhanced and stronger support for political and scientific research decision-making provided.