Abstract: The present invention provides an essential oil-containing ring, comprising a ring body that is adjustable in size, a jewel provided on the ring body, a fixing member provided on the ring body and connected to one end of the jewel, a container component detachably provided at the other end of the jewel, and an essential oil contained in the container component to emit fragrance. The essential oil placed in a container in the ring can emit the fragrance through the joint gap. The ring of the present invention is provided with an opening at the ring body, so that the size of the ring can be adjusted according to different finger sizes as required.