The invention belongs to the technical field of traditional Chinese medicine cores and particularly relates to a scent bag medicine core capable of preventing infectious diseases. The scent bag medicine core capable of preventing infectious diseases mainly solves the technical problem that an existing infectious disease treatment method brings large mental and economic burdens to patients. According to the technical scheme, the scent bag medicine core capable of preventing infectious diseases is prepared from, by weight, 10-15 parts of honeysuckle, 6-12 parts of wrinkled giant hyssop, 6-12 parts of eupatorium, 5-10 parts of cloves, 6-12 parts of cyrtomium fortunei, 6-10 parts of folium artemisiae argyi, 6-10 parts of amomum tsaoko, 5-10 parts of amomum cardamomum, 5-10 parts of fructus amomi, 10-15 parts of acorus gramineus, 10-15 parts of polygala tenuifolia, 5 parts of cinnamon, 3 parts of borneol and 6-10 parts of evodia rutaecarpa. The scent bag medicine core has a very good curative effect on preventing and treating respiratory system infectious diseases, flu, hand, foot and mouth diseases, mumps, chicken pox, bird flux and the like and will not bring large mental and economic burdens to patients.