The invention discloses a pure natural antibacterial and refreshing air freshener, which comprises the following components: peppermint essential oil, rose essential oil, lavender essential oil, mugwort essential oil, rosemary essential oil, houttuynia cordata essential oil, ethanol and water. The preparation method comprises the following steps: (1) mixing peppermint essential oil, rose essential oil, lavender essential oil, mugwort essential oil, rosemary essential oil and Houttuynia cordata essential oil to obtain an essential oil mixture; (2) the essential oil mixture obtained in the above step (1) Add ethanol and water to the air freshener product. Compared with the existing air fresheners on the market, the air freshener of the present invention has the advantages of safety, high efficiency, non-toxicity, non-irritation and environmental protection. It makes people relax physically and mentally, refreshes the spirit, and makes people feel refreshed. The plant essential oil is non-toxic and harmless to the human body while fully exerting its effect, and has no side effects such as stimulation, injury, and sensitivity.