The present invention relates to an aroma diffuser with direct diffusion of essential oil, and an aroma diffusing method. The aroma diffuser comprises a base, a housing mounted on the base and an electric control element disposed on the housing. An essential oil bottle and a gasification element are also disposed on the housing, a pump element is disposed inside the housing and the open end of the essential oil bottle is connected to the lower end of the gasification element. The pump element is connected to the gasification element and the electric control element respectively and communicates with the gasification element. The gasified essential oil gas may be diffused to ambient air directly, rather than through the housing, the diffusion is fast, and the directly diffused essential oil does not need the dilution of water, greatly raising the efficiency of aromatherapy and meeting people's use requirements.
