Cervical spondylotic myelopathy(CSM) is one kind of refractory diseases, with high rate of disability. Chinese medicine treatment has certain effects on delaying the process of CSM or its palindromia, and herbs are one of the most effective methods of conservative treatment. This paper presents a study on using data mining to explore the association rules among herbs used to treat CSM. By analyzing the papers of Chinese treatment of CSM and exploring the characteristics of herbs, we found that herbs usually used to treat CSM are Radix Angelicae Sinensis, Rhizoma Chuanxiong, Radix Astragali, Radix Salviae Miltiorrhizae, Radix Rehmanniae Preparata, Radix Glycyrrhizae, Poria, Radix Paeoniae Rubra, Flos Carthami, Radix Puerariae and Radix Paeoniae Alba. Besides, their effective rule support degree is more than 5.0% and confidence is more than 80%, indicating strong correlation.