Litsea cubeba oil is a natural plant essential oil obtained from the fruit, skin, and leaves of Litsea cubeba by steam distillation. It has a strong lemon aroma, and its main component is citral, with a content generally ranging from 60% to 80%. Litsea cubeba oil has strong bactericidal and insect resistant activities. It has a very good inhibition or killing effect on more than 10 kinds of pathogenic bacteria, such as Staphylococcus aureus, Neisseria gonorrhoeae, Escherichia coli, and many kinds of molds, such as Candida, Trichophyton, Aspergillus niger, Aspergillus flavus, Aspergillus fumigatus, etc. It is one of the plant natural products with the broadest antibacterial spectrum and strong medicine.