Objective To investigate the current status of nursing practices among blood purification specialty nurses in Beijing. Methods A total of 362 blood purification specialty nurses in Beijing were selected as survey participants through convenience sampling from August 10th to September 10th，2022. General information questionnaire and nursing practice survey questionnaire designed for specialty nurses in blood purification were used for investigation. Results A total of 359 valid questionnaires were collected，with a recovery rate of 99.2%. In terms of clinical nursing practices，the highest participation among the participants was in providing dietary and nutritional guidance to hemodialysis patients[328（91.4%）] and evaluating patients’ dietary and nutritional status[279 （77.7%）]. The least participation was in outpatient blood purification clinics and participation in external blood purification nursing consultations，accounting for 3.3%（12/359） and 2.8%（10/359） respectively. About 39.8% to 46.2% of blood purification specialty nurses were responsible for theoretical teaching and clinical supervision tasks for students/on-the-job personnel. In terms of scientific research practices，publishing papers as the first author or corresponding author[99（27.6%）]，participating in nursing research projects [68（18.9%）]，and obtaining invention patents or utility model patents[49（13.6%）] in the past three years ranked among the top three. Conclusion Blood purification specialty nurses in Beijing have demonstrated their value in multiple aspects，though there is still much room for improvement in areas that reflect the role and value of specialty nurses，such as outpatient services，participation in consultations，as well as nursing research practices.