Abstract: Objective: To identify and analyze the key factors influencing the quality of "Internet+ Nursing Service", and provide references for improving the quality of "Internet+ Nursing Service". Methods: From January to June 2024, the influencing factors of the quality of "Internet+ Nursing Service" were encoded hierarchically by the grounded theory, and the relationship matrix of the influencing factors of the quality of "Internet+ Nursing Service" was constructed through the Decision Making and Trial Evaluation Laboratory (DEMATEL) model, and the DEMATEL graph was drawn. Results: Five core categories (system layer, technology layer, demand layer, supply layer and social layer) and 29 main categories were encoded. Eleven key influencing factors of the quality of "Internet+ Nursing Service" were quantitatively identified, including five key driving factors (service process and norms, nurse safety guarantee system, platform construction, personal safety early warning technology, and patient trust in nurses) and six core problem factors (patients' understanding of service safety and risks, patients' evaluation and feedback on service quality, nurses' willingness to engage, nurses' service attitude, public opinion orientation, and publicity intensity). Conclusion: The quality of "Internet+ Nursing Service" is influenced by the interaction of multiple influencing factors, and different factors have different influencing ways and degrees. Improvement of the quality of "Internet+ Nursing Service" should be carried out from aspects such as improving the system, strengthening the technical support, focusing on both the supply and demand sides, and optimizing the social environment.

Key words: grounded theory; Decision Making and Trial Evaluation Laboratory; Internet+ Nursing Service; nursing quality; influencing factor