The invention discloses a breatheasy patch and a preparation method thereof. The breatheasy patch is characterized by being formed by sequentially overlapping an essential oil layer (6), non-woven cloth (1), a structural adhesive layer (2), a PET film (3), a pressure-sensitive adhesive layer (4) and a PET film (5), and the upper surface of the non-woven cloth (1) is coated with the essential oil layer (6); essential oil is prepared from, by weight, 65%-75% of eucalyptus essential oil, 15%-25% of eucalyptus globulus essential oil and 5%-15% of mint oil. According to the breatheasy patch and the preparation method thereof, the optimized non-woven cloth has a good oil-locking capacity and slow-release function, the non-woven cloth can be coated with a large amount of the composite essential oil, persistent volatilization of the essential oil is facilitated, the lasting time can reach 48 hours, and strong volatilization of the essential oil can be achieved in the first four hours.