Abstract:Objective: Study the actual dosage of clinical prescription in pediatrics of traditional Chinese medicine (TCM), and offer the consummate data for formulating the dosage standard of Chinese cut crude drug. Method: We made use of the methods of stratified sampling and random sampling to investigate 38 736 broth prescriptions of pediatrics of TCM in 21 various hospitals, 18 provinces, and constructed the database, then applied Weka KDD software to analyze. Result: We identified the frequency and clinical dosage intervals of 300 drugs, and the practical dosage of 155 drugs. Most of drug’s dosage centralized the four intervals: (3-6], (6-9], (9-12], (12-15], and the concrete dosage were 6, 9, 10, 12, 15 g, etc. Conclusion: The dosages in the pharmacopoeia are not coincided with the practical dosages in pediatrics, and demand to revise. This paper will offer the consummate data for formulating the new dosage standard.