Abstract：Objective：To summarize the medication rules of Professor LIN Chuangjian treating chronic non-specific low back pain with data mining. Methods：Cases of chronic non-specific low back pain treated by Professor LIN from April 2018 to April 2022 were collected and screened to establish a database，which was analyzed by Ancient and Modern Medical Records Cloud Platform (V2.3.2). Results ： A total of 203 prescriptions were included，involving 106 Chinese medicinals，with a total of 2 955 medicinal records. Among them， there were 24 high-frequency medicinals that appeared more than 25 times； the main medicinal natures were warm and neutral，and the medicinal flavors were mainly acrid，sweet，and bitter； the main meridian entries were the liver， kidney， and spleen meridians. The association rule analysis showed that the top five combinations in terms of support were Achyranthis Bidentatae Radix-Angelicae Pubescentis Radix， Taxilli Herba-Angelicae Pubescentis Radix， Pogostemonis Herba-Angelicae Pubescentis Radix， Codonopsis Radix-Angelicae Pubescentis Radix， and Angelicae Pubescentis Radix- Magnoliae Officinalis Cortex. Cluster analysis obtained four high frequency and core cluster combinations， and complex network analysis summarized the core prescriptions as follows：Angelicae Pubescentis Radix， Gentianae Macrophyllae Radix， Magnoliae Officinalis Cortex， Codonopsis Radix， Pogostemonis Herba， Glycyrrhizae Radix et Rhizoma， Achyranthis Bidentatae Radix， Taxilli Herba， Eucommiae Cortex， Chaenomelis Fructus， Clematidis Radix et Rhizoma， and Angelicae Dahuricae Radix. Conclusion： In the treatment of Lingnan area chronic non-specific low back pain， Professor LIN emphasizes three factors， namely the patients， the seasons， and the living environment of the patients； the medication should be adjusted according to syndromes. The principle is to dry dampness， move qi， and fortify the spleen， supplement the liver and kidney， and strengthen sinew and bone， while also taking into account the principles of dispelling wind and dissipating cold， nourishing qi and blood， using methods of attack and supplement，and dealing with both the root and branch of the disease.