The present application relates to a dental floss device, including a dental floss holder configured to retain a strand of dental floss, and a tension adjustment mechanism connected with the dental floss holder, so as to adjust the tension along the dental floss retained on the device.本創作涉及一種牙線裝置,包括牙線固定器和牙線調緊器,所述牙線固定器用於供牙線固定在其上,所述牙線調緊器與牙線固定器相連,所述牙線調緊器用於調節固定在所述牙線固定器上的牙線的張緊度。