Disclosed is a Chinese medicine composition for preventing and treating nephropathogenic infectious bronchitis and avian nephrosis, composed mainly of 10~15 parts by weight of Semen Armeniacae Amarum,15~25 parts by weight of Ramulus Cinnamomi,15~22 parts by weight of Herba Artemisiae Scopariae,8~15 parts by weight of Radix Glycyrrhizae,15~25 parts by weight of Pericarpium Citri Reticulatae,10~15 parts by weight of Semen Plantaginis,16~25 parts by weight of Radix Astragali,18~30 parts by weight of Radix Platycodi,20~30 parts by weight of Herba Lysimachiae, 20~30 parts by weight of Herba Dianthi, based on the total weight of the composition.Composition de médecine traditionnelle chinoise (MTC) pour la prévention et le traitement de bronchites infectieuses de type rénal et de néphroses aviaires comprenant essentiellement les plantes médicinales chinoises exprimées en parties en poids : 10-15 parties de Xing Ren, 15-25 parties de Ramulus Cinnamomi, 15-22 parties de Herba Artemisiae scopariae, 8-15 parties de Glycyrrhiza uralensis, 15-25 parties de Pericarpium Citri Reticulatae, 10-15 parties de Semen Plantaginis, 16-25 parties de Radix astragali, 18-30 parties de Campanulaceae, 20-30 parties de Lysimachia christinae et 20-30 parties de Diantus superbus.