Embodiments of the present application provide a method and a device for adjusting television notification display durations and a television, the method includes: receiving notification information sent by a server, and determining a first display duration according to a notification type of the notification information; receiving an operation instruction sent by a user regarding the notification information; adjusting the first display duration to a second display duration according to a type of the operation instruction. The method and device for adjusting television notification display durations, and the television provided by the embodiments of the present application can adjust the display durations of notifications according to level of user interest towards the certain type of notifications, thus improving user experience.