Objective:To analyze the correlation between cuproptosis genes and immune infiltration during the occurrence and development of multiple sclerosis(MS),and to predict the traditional Chinese medicine,to provide theoretical basis for the mecha-nism study of cuproptosis in MS immune infiltration and Chinese medicine to intervene in immune regulation.Methods:The gout chip of MS was downloaded from the GEO database and standardized;based on the processed data,immune cells and functions were ex-tracted and quantified,and the correlation and differences of immune cells and functions were analyzed;at the same time,cuproptosis genes related to MS were screened out,a risk model was constructed,and enrichment analysis was carried out;the prediction of cu-proptosis genes and immune-related biological processes were carried out.Results:① Among immune cells,T follicular helper cell and B cell showed the strongest positive correlation;among the immune functions,parainflammation and typeⅠIFN reponse showed the strongest positive correlation;②B cell,T helper cell and human leukocyte antigen were lowly expressed in MS patients,while major histocompatibility complex class Ⅰ,parainflammation and typeⅠIFN response were significantly expressed;③ The cupropto-sis genes associated with MS were SLC31A1,PDHA1,NLRP3,MTF1,GLS and DBT,of which DBT was the most likely risk factor for MS;④The occurrence and development of MS involves biological processes such as IL-4 production,T-helper cell differentiation,and acute inflammatory response,which were related to pathways such as arginine biosynthesis,citrate cycle,and propanoate metabo-lism;⑤Banxia,Danshen,Jianghuang and other traditional Chinese medicines may be used as potential molecular drug sources.Con-clusion:The expression of cuproptosis gene is closely related to MS-related immune cells and functions,which can provide support for the basic research of MS.