Objective To clarify the views of healthcare providers on the current vascular access shared decision-making model under the daytime chemotherapy mode, and to determine improvement measures to promote the conventional implementation of the daytime chemotherapy vascular access shared decision-making model. Methods Based on the SWOT model, an interview outline was developed. Using purposive sampling method, 7 doctors and 6 intravenous therapy nurses working at Tianjin Medical University Cancer Institute & Hospital from April to June 2023 were selected for semi-structured interviews, and content analysis method was used for data analysis. Results Four themes were extracted for internal advantages: alleviating the pressure of diagnosis and treatment and decision-making for doctors, ability and willingness of specialized intravenous therapy nurses to implement, promoting the rational selection of vascular pathways, enhancing the recognition of vascular pathways in daytime chemotherapy patients, and enhancing communication stickiness between nurses and patients. Four themes were extracted for internal weaknesses: increased workload, impractical decision support tools, unsmooth implementation processes, and incomplete informatization. Three themes were extracted for external opportunities: national policy support, willingness of daytime chemotherapy patients to participate in decision-making, and sufficient evidence-based evidence. Three themes were extracted for external threats: poor communication between healthcare providers under daytime chemotherapy mode, cognitive differences related to intravenous therapy among healthcare providers, and insufficient confidence in nurse leadership. Conclusions The vascular pathway shared decision-making led by intravenous therapy nurses has certain advantages in the daytime chemotherapy mode. In the future, we should seize existing opportunities, avoid our own weaknesses, face external threats, and develop a standardized vascular access shared decision-making model led by intravenous therapy nurses under the daytime chemotherapy mode, promoting the best evidence-based practice for vascular access decision-making during daytime chemotherapy.