Objective To understand the current situation of blood pressure measurement in pediatric nurses in China, and to provide scientific basis for standardizing blood pressure measurement in children. Methods By convenient sampling method, 2 817 pediatric nurses from 230 hospitals in 18 provinces, 2 autonomous regions and 3 municipalities were surveyed, using a self-prepared "Questionnaire on Current Situation of Children′s Blood Pressure Measurement". Results A valid sample of 2 674 nurses was obtained. Among them, only 788 (29.47%) nurses selected blood pressure measurement equipment that has been validated in children; 2 037(76.18%) nurses selected the cuff model based on children′s upper arm circumference, but 1 669(62.42%) nurses measured the upper arm circumference incorrectly; nurses varied in the frequency and method of reporting blood pressure measurements, with as many as 17.31% of nurses measuring blood pressure only once before they took the reading. Conclusion There are great differences in the clinical practice of blood pressure measurement in children. It is necessary to develop standardized operation procedures and standards for blood pressure measurement in children, strengthen the training and promotion of blood pressure measurement technique in children, and improve the standardization and scientific operation of blood pressure measurement by pediatric nurses.