Assisted reproductive drug clinical trials require close coordination between reproductive medicine, nursing, embryology, pharmacy, laboratory, data management, and regulatory teams. Their implementation is complicated by cycle-dependent treatment schedules, frequent endocrine and ultrasound monitoring, strict medication timing, reproductive specimen handling, pregnancy follow-up, and safety reporting. These features create specific demands for clinical research nurses (CRNs), whose responsibilities extend beyond routine nursing care. This review summarizes the roles and functions of CRNs in assisted reproductive drug clinical trials in China, focusing on position management, subject management, investigational product management, material and specimen traceability, data documentation, quality control, and inspection readiness. Existing literature suggests that CRNs can support protocol implementation, subject protection, visit coordination, adverse-event reporting, and data integrity when their responsibilities are clearly defined. However, CRN practice in this field remains insufficiently standardized, particularly regarding admission criteria, specialty training, competency evaluation, workload allocation, and career development. Thus, establishing reproductive-medicine-specific CRN training systems and position-management frameworks may improve trial quality and support the professional development of clinical research nursing in assisted reproductive medicine.