To analyze research trends, frontiers, and hot topics in specialty nurse training over the past 20 years, and provide a reference for researchers to understand the current research landscape in this field. Studies from the core collection of Web of Science were used. Furthermore, CiteSpace 6.3 R3 was utilized to analyze information on country, institution, authors, keywords and burst words. A total of 296 articles were included in the analysis. The United States had the highest number of articles, and there was limited cooperation between authors and institutions. The research hotspots in this field included "clinical education models for specialist nurses", "APN role training", and "interprofessional education". The future research trend is to explore the effective integration of training models suitable for different regions and cultural backgrounds and cross-professional education models. It is suggested that researchers pay attention to the innovation and development of specialized nursing clinical practice under different cultural backgrounds, and strengthen international exchanges and cooperation.