Novel use of patchoulol

A use of patchoulol in preparing antibiotic medicaments, healthcare food products, food products, cosmetics, disinfectants, or daily supplies. The patchoulol is effective against methicillin-resistant bacteria, and can serve as an active ingredient, with excipients or auxiliary ingredients added, in preparing the medicaments, healthcare food products, food products, cosmetics, disinfectant, or daily supplies that are provided with antibacterial effects.